CA2928918A1 - Method and apparatus for preparation of an intraocular lens for subsequent insertion into the eye of a patient - Google Patents
Method and apparatus for preparation of an intraocular lens for subsequent insertion into the eye of a patient Download PDFInfo
- Publication number
- CA2928918A1 CA2928918A1 CA2928918A CA2928918A CA2928918A1 CA 2928918 A1 CA2928918 A1 CA 2928918A1 CA 2928918 A CA2928918 A CA 2928918A CA 2928918 A CA2928918 A CA 2928918A CA 2928918 A1 CA2928918 A1 CA 2928918A1
- Authority
- CA
- Canada
- Prior art keywords
- intraocular lens
- lens assembly
- preparation
- haptic
- elongate extension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Landscapes
- Prostheses (AREA)
Abstract
Apparatus for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient including a pair of elongate extension assemblies each adapted for connection to an end of an haptic of the intraocular lens assembly and a method for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient including providing a pair of elongate extension assemblies each adapted for connection to an end of an haptic of the intraocular lens assembly and connecting one of the pair of elongate extension assemblies to each haptic of the intraocular lens assembly.
Description
METHOD AND APPARATUS FOR PREPARATION OF AN INTRAOCULAR
LENS FOR SUBSEQUENT INSERTION INTO THE EYE OF A PATIENT
REFERENCE TO RELATED APPLICATIONS
[0001] Reference is made to U.S. Patent Application Serial No. 14/070,958 filed November 04, 2013 and entitled "METHOD AND APPARATUS FOR
PREPARATION AND INSERTION OF AN INTRAOCULAR LENS INTO THE EYE
OF A PATIENT", the disclosure of which is hereby incorporated by reference.
LENS FOR SUBSEQUENT INSERTION INTO THE EYE OF A PATIENT
REFERENCE TO RELATED APPLICATIONS
[0001] Reference is made to U.S. Patent Application Serial No. 14/070,958 filed November 04, 2013 and entitled "METHOD AND APPARATUS FOR
PREPARATION AND INSERTION OF AN INTRAOCULAR LENS INTO THE EYE
OF A PATIENT", the disclosure of which is hereby incorporated by reference.
[0002] Reference is also made to U.S. Provisional Patent Application Serial No.
62/031,255 filed July 31, 2014 and entitled "METHOD AND APPARATUS FOR
PREPARATION AND INSERTION OF AN INTRAOCULAR LENS INTO THE EYE
OF A PATIENT", the disclosure of which is hereby incorporated by reference.
62/031,255 filed July 31, 2014 and entitled "METHOD AND APPARATUS FOR
PREPARATION AND INSERTION OF AN INTRAOCULAR LENS INTO THE EYE
OF A PATIENT", the disclosure of which is hereby incorporated by reference.
[0003] Reference is also made to PCT Patent Application No.
PCT/IL2014/050955 filed November 3, 2014 and entitled "METHOD AND
APPARATUS FOR PREPARATION AND INSERTION OF AN INTRAOCULAR
LENS INTO THE EYE OF A PATIENT", the disclosure of which is hereby incorporated by reference and priority of which is hereby claimed pursuant to 1.78(c).
FIELD OF THE INVENTION
PCT/IL2014/050955 filed November 3, 2014 and entitled "METHOD AND
APPARATUS FOR PREPARATION AND INSERTION OF AN INTRAOCULAR
LENS INTO THE EYE OF A PATIENT", the disclosure of which is hereby incorporated by reference and priority of which is hereby claimed pursuant to 1.78(c).
FIELD OF THE INVENTION
[0004] The present invention relates generally to intraocular lenses and auxiliary structures for use therewith as well as methods and apparatus for preparation of intraocular lenses for subsequent insertion thereof into the eye of a patient.
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION
[0005] Pseudophakic patients for whom the original ocular capsular bag is not intact, for example as a result of cataract surgery or lens exchange, require novel methods and apparatus for the implantation and fixation of an intraocular lens within the patient's eye.
SUMMARY OF THE INVENTION
SUMMARY OF THE INVENTION
[0006] The present invention seeks to provide apparatus for use in the implantation and fixation of an intraocular lens within the eye of a patient and methods for such preparation.
[0007] There is thus provided in accordance with a preferred embodiment of the present invention apparatus for preparation of an intraocular lens assembly prior to insertion into the eye of a patient, including a pair of elongate extension assemblies each adapted for connection to an end of an haptic of the intraocular lens assembly.
[0008] In accordance with a preferred embodiment of the present invention, each elongate extension assembly includes an elongate extension element and a connector for connecting the elongate extension element to an end of an haptic of the intraocular lens assembly. Additionally, each elongate extension element preferably includes a thread portion and a needle. Additionally or alternatively, the connector preferably includes a generally cylindrical portion having a longitudinal bore formed within, the elongate extension element having at least one knot and being adapted to be pulled through the longitudinal bore, thereby causing the at least one knot to lie alongside the end of the haptic within the longitudinal bore in compressive frictional retaining engagement. Preferably, the elongate extension element has two knots therein.
Additionally, the longitudinal bore includes a tapered portion with the diameter of the bore of the tapered portion narrowing in correspondence with the tapering from that of the diameter of the generally cylindrical portion.
Additionally, the longitudinal bore includes a tapered portion with the diameter of the bore of the tapered portion narrowing in correspondence with the tapering from that of the diameter of the generally cylindrical portion.
[0009] Preferably, the connector is a tightenable sleeve. Additionally, the tightenable sleeve is a shrinkable sleeve. Alternatively, the tightenable sleeve is a physically deformable sleeve.
[0010] Tri accordance with a preferred embodiment of the present invention, an end of the elongate extension element is fixable to an end of the haptic by at least one of welding and adhesive bonding. Preferably, a recess is formed in an end of the haptic, the recess having a diameter slightly greater than that of the elongate element.
[0011] There is also provided in accordance with another preferred embodiment of the present invention a method for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient including providing a pair of elongate extension assemblies, each adapted for connection to an end of an haptic of the intraocular lens assembly, and connecting each of the pair of elongate extension assemblies to an haptic of the intraocular lens assembly.
[0012] Preferably, each elongate extension assembly includes an elongate extension element and a connector for connecting the elongate extension element to an end of an haptic of the intraocular lens assembly and the connecting includes using the connector to tightly engage one of the pair of elongate extension assemblies to an haptic of the intraocular lens assembly. Additionally, each elongate extension assembly includes a thread portion and a needle. Additionally, the connector preferably includes a generally cylindrical portion having a longitudinal bore formed within, the elongate extension element having at least one knot therein and being adapted to be pulled through the longitudinal bore, thereby causing the at least one knot to lie alongside the end of an haptic within the longitudinal bore in compressive frictional retaining engagement and connecting includes pulling the elongate extension element through the longitudinal bore, causing the at least one knot to lie alongside the end of the haptic within the longitudinal bore in compressive frictional retaining engagement.
Preferably, both the at least one knot of the elongate extension element and the end of an haptic are impeded from passing completely through the longitudinal bore and exiting the connector by at least one of the compressive frictional retaining engagement and the narrowing of the connector at the tapered portion thereof.
100131 In accordance with a preferred embodiment of the present invention, the connector is a tightenable sleeve and the method for preparation of an intraocular lens assembly includes connecting an elongate extension element and an haptic by tightening the sleeve when both an end of an haptic and an end of the elongate extension element are located within the sleeve, thereby tightly engaging the end of the haptic and the end of the elongate extension element inside the sleeve. Preferably, the tightening the sleeve involves shrinking it via application of at least one of heat or UV radiation.
Alternatively, the tightening the sleeve involves physically deforming it.
[0014] Preferably, the method for preparation of an intraocular lens assembly includes connecting an elongate extension element and an haptic by fixing an end of the elongate extension element to an end of the haptic by at least one of welding and adhesive bonding. Additionally, the fixing includes inserting the elongate element into a =
recess formed in the end of the haptic. Preferably, the inserting the elongate element into the recess formed in the end of the haptic engages the elongate element by compressive frictional retaining engagement.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention will be understood and appreciated more fully from the following detailed description taken in conjunction with the drawings in which:
[0016] Fig. 1A is a simplified pictorial illustration of apparatus for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient, constructed and operative in accordance with a preferred embodiment of the present invention, the apparatus including a knotted elongate loop extension element extending through a connector;
[0017] Fig. 1B is a simplified partially sectional view of the apparatus of Fig.
1A, taken along lines B-B of Fig. 1A;
[0018] Fig. 2A is a simplified sectional view of the apparatus of Figs. 1A
&1B, corresponding to Fig. 1B and showing the insertion of an haptic of an intraocular lens assembly into the connector alongside the knotted elongate loop extension element;
[0019] Fig. 2B is a simplified partially sectional view of the apparatus of Figs lA ¨ 2A corresponding to Fig. 2A and showing the apparatus with two knots pulled into the connector, thereby tightly engaging both the knotted elongate loop extension element and the haptic of the intraocular lens assembly and fastening them together;
[0020] Fig. 2C is a simplified partially sectional and partially pictorial illustration of the apparatus of Figs IA ¨ 2B and showing the intraocular lens assembly having both haptics thereof tightly engaged with knotted elongate loop extension elements within respective connectors;
[0021] Fig. 3A is a simplified pictorial illustration of the apparatus for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient, constructed and operative in accordance with another preferred embodiment of the present invention, the apparatus including an elongate loop extension element, a tightenable connector and an haptic from an intraocular lens assembly;
[0022] Fig. 3B is a simplified partially sectional view of the apparatus of Fig.
3A, taken along lines B-B of Fig. 3A;
[0023] Fig. 4A is a simplified partially sectional view of the apparatus of Figs.
3A & 3B, corresponding to Fig. 3B and showing the insertion of an haptic of an ' intraocular lens assembly and an elongate loop extension element into opposite ends of a tightenable connector;
[0024] Fig. 4B is a simplified partially sectional view of the apparatus of Figs 3A ¨ 4A corresponding to Fig. 4A and showing the tightened tightenable connector tightly engaging both the elongate loop extension element and the haptic of the intraocular lens assembly and fastening them together;
[0025] Fig. 4C is a simplified partially sectional pictorial illustration of the apparatus of Figs 3A ¨ 4B and showing the intraocular lens assembly having both haptics thereof tightly engaged with elongate loop extension elements in tightened tightenable connectors;
[0026] Fig. 5A is a simplified partial pictorial illustration of the apparatus for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient, constructed and operative in accordance with yet another preferred embodiment of the present invention, the apparatus including an elongate loop extension element and the haptic of an intraocular lens assembly formed with a recess in an end of the haptic;
[0027] Fig. 5B is a simplified partially sectional view of the apparatus of Fig.
5A, taken along lines B-B of Fig. 5A;
[00281 Fig. 6A is a simplified view of the apparatus of Figs. 5A & 5B, corresponding to Fig. 5B and showing attachment of an elongate loop extension element within the recess in the end of an haptic of an intraocular lens assembly being retained as by ultrasonic welding or adhesive bonding; and [0029] Fig. 6B is a simplified partially sectional pictorial illustration of the apparatus of Figs 5A ¨ 6A and showing elongate loop extension elements tightly attached within both haptics of the intraocular lens assembly thereof, both being retained as by ultrasonic welding or adhesive bonding.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0030] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, and components have not been described in detail so as not to obscure the present invention.
[0031] Reference is now made to Figs. lA & 1B, which are respectively a simplified pictorial illustration of and a simplified partially sectional view of apparatus for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient, constructed and operative in accordance with a preferred embodiment of the present invention, apparatus including a knotted elongate stretchable loop extension element 100 extending through a connector 102.
[0032] The knotted elongate stretchable loop extension element 100 is preferably a conventional surgical suture, preferably formed of elastomeric flexible material and including a thread portion 106 and a needle 108. At least one knot 110 and preferably two knots as shown in the illustrated embodiment, which may be simple knots, are formed on the thread portion 106. The knotted elongate stretchable loop extension element 100 is preferably threaded, needle first through connector 102 such that a length 112 of the thread portion 106, between the needle 108 and one of the knots 110 initially extends through connector 102.
[0033] As seen in Figs. 1A & 1B, connector 102 preferably includes a longitudinal bore 120 having a cylindrical portion 122 and a tapered portion 124.
[0034] Apparatus for preparation of an intraocular lens assembly may be supplied to a user in the operative orientation described hereinabove with reference to Figs. lA and 1B.
[0035] Reference is now made to Fig. 2A ¨ 2C, which illustrate use of apparatus of Figs. IA & 1B for preparation of an intraocular lens assembly for insertion into the eye of a patient.
[0036] Fig. 2A shows that an haptic 130 of an intraocular lens assembly 132 is inserted into longitudinal bore 120 of connector 102 alongside length 112 of the thread portion 106 of a knotted elongate stretchable loop extension element 100, between the needle 108 and one of knots 110.
[0037] Fig. 2B shows that the thread portion 106 is pulled through longitudinal bore 120, such that two knots 110 enter the cylindrical portion 122 of longitudinal bore 120 and thus tightly engage the haptic 130 and the thread portion 106 of the knotted elongate stretchable loop extension element 100, in compressive frictional retaining engagement therewith. As is seen in Fig. 2B, the knots 110 of the knotted elongate extension element 100 and the haptic 130 are impeded from passing completely through the longitudinal bore 120 and exiting the connector 102 by at least one of, the compressive frictional retaining engagement and the narrowing of the longitudinal bore 120 at the tapered portion 124.
[0038] Fig. 2C shows the intraocular lens assembly 132 having both haptics 130 thereof tightly engaged with knotted elongate stretchable loop extension elements 100 in the manner described hereinabove with reference to Figs. 2A & 2B. The intraocular lens assembly 132 having both haptics 130 thereof tightly engaged with knotted elongate stretchable loop extension elements 100 is now prepared for insertion into the eye of a patient.
[0039] Reference is now made to Figs. 3A & 3B, which are respectively a simplified pictorial illustration of and a simplified partially sectional view of apparatus for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient, constructed and operative in accordance with another preferred embodiment of the present invention, the apparatus including an elongate stretchable loop extension element 300, a tightenable connector 302 and an haptic 330 of an intraocular lens assembly 304.
[0040] The elongate stretchable loop extension element 300 is preferably a conventional surgical suture, preferably formed of elastomeric flexible material and including a thread portion 306 and a needle 308. Tightenable connector 302 preferably includes a longitudinal bore 320, a first end 322 and a joint 324 at which the diameter of the longitudinal bore 320 narrows. An end 312 of the thread portion 306 of the elongate stretchable loop extension element 300 is preferably folded over. This folding over of the end 312 of the thread portion 306 of the elongate stretchable loop extension element 300 causes the effective diameter of the folded over portion 326 is slightly less than the diameter of the longitudinal bore 320 of the tightenable connector 302.
Tightenable connector 302 has a second end 328 opposite its first end 322.
[0041] Tightenable connector 302 may be any suitable tightenable connector and may be, for example, a shrinkable connector which shrinks in response to application thereto of heat or UV radiation. An example of such a shrinkable connector is a Heat Shrink Fluoropolymer Tubing manufactured by Zeus Inc., headquartered at 620 Magnolia Road, Orangeburg, S.C. U.S.A. The Heat Shrink Fluoropolymer Tubing can be found on page 25 of Catalog G which is available at www.zeusinc.com.
Alternatively, tightenable connector 302 may be a physically deformable connector, which may be deformed by use of a punch or pliers.
[0042] Apparatus for preparation of an intraocular lens assembly according to this embodiment may be supplied to a user in the operative orientation described hereinabove with reference to Figs. 3A and 3B.
[0043] Reference is now made to Fig. 4A ¨ 4C, which illustrate use of apparatus of Figs. 3A & 3B for preparation of an intraocular lens assembly for insertion into the eye of a patient.
[0044] Fig. 4A shows that an haptic 330 of an intraocular lens assembly 332 is inserted into longitudinal bore 320 at second end 328 of tightenable connector while folded over portion 326 at end 312 of the thread portion 306 of the elongate stretchable loop extension element 300 is inserted into first end 322 of tightenable connector 302. Both the haptic 330 and the folded over portion 326 of the elongate stretchable loop extension element 300 are inserted up until the joint 324 in the tightenable connector 302, as seen in Fig. 4A. The diameters of the haptic 330 and the folded over portion 326 of the elongate stretchable loop extension element 300 are slightly less than the diameter of the longitudinal bore 320 of the tightenable connector 302; this causes the haptic 330 and the elongate stretchable loop extension element 300 to become loosely engaged in the tightenable connector 302.
[0045] Fig. 4B shows that the connector is crimped adjacent end 322 in a way such as described in relation to Figs. 3A & 3B above and the cross-section of the longitudinal bore 320 is made smaller and thus tightly engages both the haptic 330 and the folded over portion 326 at end 312 of elongate stretchable loop extension element 300.
[0046] Fig. 4C shows the intraocular lens assembly 332 having both haptics thereof tightly engaged with elongate stretchable loop extension elements 300 in the ' manner described hereinabove with reference to Figs. 4A & 4B. The intraocular lens assembly 332 having both haptics 330 thereof tightly engaged with elongate stretchable loop extension elements 300 is now prepared for insertion into the eye of a patient.
[0047] Reference is now made to Figs. 5A & 5B, which are respectively a simplified pictorial illustration of and a simplified partially sectional view of apparatus for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient, constructed and operative in accordance with yet another preferred embodiment of the present invention, the apparatus including an elongate stretchable loop extension element 500 which is adapted for ultrasonic welding or adhesive bonding.
[0048] The elongate stretchable loop extension element 500 is preferably a conventional surgical suture, preferably formed of elastomeric flexible material and including a thread portion 506 and a needle 508 wherein the thread portion 506 is made of a material which is adapted for ultrasonic welding or adhesive bonding. As seen in Figs. 5A & 5B, an haptic 530 of an intraocular lens assembly 532 is formed at an end 534 thereof with a recess 536 into which an end 538 of the thread portion 506 of the stretchable loop extension element 500 may be inserted.
[0049] Apparatus for preparation of an intraocular lens assembly according to this embodiment may be supplied to a user in the operative orientation described hereinabove with reference to Figs. 5A and 5B with or without equipment or material for ultrasonic welding or adhesive bonding.
[0050] Reference is now made to Fig. 6A & 6B, which illustrate use of apparatus of Figs. 5A & 5B for preparation of an intraocular lens assembly for insertion into the eye of a patient.
[0051] Fig. 6A shows that an end 538 of the thread portion 506 of the elongate stretchable loop extension element 500 is inserted into a recess 536 of an end 534 of an haptic 530 of an intraocular lens assembly 532. The diameter of the end 538 of the thread portion 506 of the elongate stretchable loop extension element 500 approximates the diameter of the recess 536 in the haptic 530 and is thus retained by compressive frictional retaining engagement thereof, when inserted therein. Retention of the end 538 of the thread portion 506 of the elongate stretchable loop extension element 500 by the recess 536 in the haptic 530 is enhanced by the application thereof of either ultrasonic welding or adhesive bonding.
[0052] Fig. 6B shows the intraocular lens assembly 532 having both haptics thereof tightly engaged with elongate stretchable loop extension elements 500 in the manner described hereinabove with reference to Fig. 6A. The intraocular lens assembly 532 having both haptics 530 thereof tightly engaged with elongate stretchable loop extension elements 500 is now prepared for insertion into the eye of a patient.
[0053] It will be appreciated by persons skilled in the art that the present invention is not limited by what has been particularly shown and described hereinabove.
Rather the scope of the present invention includes both combinations and subcombinations of the various features described hereinabove as well as modifications thereof which would occur to persons skilled in the art upon reading the foregoing description and which are not in the prior art.
Preferably, both the at least one knot of the elongate extension element and the end of an haptic are impeded from passing completely through the longitudinal bore and exiting the connector by at least one of the compressive frictional retaining engagement and the narrowing of the connector at the tapered portion thereof.
100131 In accordance with a preferred embodiment of the present invention, the connector is a tightenable sleeve and the method for preparation of an intraocular lens assembly includes connecting an elongate extension element and an haptic by tightening the sleeve when both an end of an haptic and an end of the elongate extension element are located within the sleeve, thereby tightly engaging the end of the haptic and the end of the elongate extension element inside the sleeve. Preferably, the tightening the sleeve involves shrinking it via application of at least one of heat or UV radiation.
Alternatively, the tightening the sleeve involves physically deforming it.
[0014] Preferably, the method for preparation of an intraocular lens assembly includes connecting an elongate extension element and an haptic by fixing an end of the elongate extension element to an end of the haptic by at least one of welding and adhesive bonding. Additionally, the fixing includes inserting the elongate element into a =
recess formed in the end of the haptic. Preferably, the inserting the elongate element into the recess formed in the end of the haptic engages the elongate element by compressive frictional retaining engagement.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention will be understood and appreciated more fully from the following detailed description taken in conjunction with the drawings in which:
[0016] Fig. 1A is a simplified pictorial illustration of apparatus for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient, constructed and operative in accordance with a preferred embodiment of the present invention, the apparatus including a knotted elongate loop extension element extending through a connector;
[0017] Fig. 1B is a simplified partially sectional view of the apparatus of Fig.
1A, taken along lines B-B of Fig. 1A;
[0018] Fig. 2A is a simplified sectional view of the apparatus of Figs. 1A
&1B, corresponding to Fig. 1B and showing the insertion of an haptic of an intraocular lens assembly into the connector alongside the knotted elongate loop extension element;
[0019] Fig. 2B is a simplified partially sectional view of the apparatus of Figs lA ¨ 2A corresponding to Fig. 2A and showing the apparatus with two knots pulled into the connector, thereby tightly engaging both the knotted elongate loop extension element and the haptic of the intraocular lens assembly and fastening them together;
[0020] Fig. 2C is a simplified partially sectional and partially pictorial illustration of the apparatus of Figs IA ¨ 2B and showing the intraocular lens assembly having both haptics thereof tightly engaged with knotted elongate loop extension elements within respective connectors;
[0021] Fig. 3A is a simplified pictorial illustration of the apparatus for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient, constructed and operative in accordance with another preferred embodiment of the present invention, the apparatus including an elongate loop extension element, a tightenable connector and an haptic from an intraocular lens assembly;
[0022] Fig. 3B is a simplified partially sectional view of the apparatus of Fig.
3A, taken along lines B-B of Fig. 3A;
[0023] Fig. 4A is a simplified partially sectional view of the apparatus of Figs.
3A & 3B, corresponding to Fig. 3B and showing the insertion of an haptic of an ' intraocular lens assembly and an elongate loop extension element into opposite ends of a tightenable connector;
[0024] Fig. 4B is a simplified partially sectional view of the apparatus of Figs 3A ¨ 4A corresponding to Fig. 4A and showing the tightened tightenable connector tightly engaging both the elongate loop extension element and the haptic of the intraocular lens assembly and fastening them together;
[0025] Fig. 4C is a simplified partially sectional pictorial illustration of the apparatus of Figs 3A ¨ 4B and showing the intraocular lens assembly having both haptics thereof tightly engaged with elongate loop extension elements in tightened tightenable connectors;
[0026] Fig. 5A is a simplified partial pictorial illustration of the apparatus for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient, constructed and operative in accordance with yet another preferred embodiment of the present invention, the apparatus including an elongate loop extension element and the haptic of an intraocular lens assembly formed with a recess in an end of the haptic;
[0027] Fig. 5B is a simplified partially sectional view of the apparatus of Fig.
5A, taken along lines B-B of Fig. 5A;
[00281 Fig. 6A is a simplified view of the apparatus of Figs. 5A & 5B, corresponding to Fig. 5B and showing attachment of an elongate loop extension element within the recess in the end of an haptic of an intraocular lens assembly being retained as by ultrasonic welding or adhesive bonding; and [0029] Fig. 6B is a simplified partially sectional pictorial illustration of the apparatus of Figs 5A ¨ 6A and showing elongate loop extension elements tightly attached within both haptics of the intraocular lens assembly thereof, both being retained as by ultrasonic welding or adhesive bonding.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0030] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, and components have not been described in detail so as not to obscure the present invention.
[0031] Reference is now made to Figs. lA & 1B, which are respectively a simplified pictorial illustration of and a simplified partially sectional view of apparatus for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient, constructed and operative in accordance with a preferred embodiment of the present invention, apparatus including a knotted elongate stretchable loop extension element 100 extending through a connector 102.
[0032] The knotted elongate stretchable loop extension element 100 is preferably a conventional surgical suture, preferably formed of elastomeric flexible material and including a thread portion 106 and a needle 108. At least one knot 110 and preferably two knots as shown in the illustrated embodiment, which may be simple knots, are formed on the thread portion 106. The knotted elongate stretchable loop extension element 100 is preferably threaded, needle first through connector 102 such that a length 112 of the thread portion 106, between the needle 108 and one of the knots 110 initially extends through connector 102.
[0033] As seen in Figs. 1A & 1B, connector 102 preferably includes a longitudinal bore 120 having a cylindrical portion 122 and a tapered portion 124.
[0034] Apparatus for preparation of an intraocular lens assembly may be supplied to a user in the operative orientation described hereinabove with reference to Figs. lA and 1B.
[0035] Reference is now made to Fig. 2A ¨ 2C, which illustrate use of apparatus of Figs. IA & 1B for preparation of an intraocular lens assembly for insertion into the eye of a patient.
[0036] Fig. 2A shows that an haptic 130 of an intraocular lens assembly 132 is inserted into longitudinal bore 120 of connector 102 alongside length 112 of the thread portion 106 of a knotted elongate stretchable loop extension element 100, between the needle 108 and one of knots 110.
[0037] Fig. 2B shows that the thread portion 106 is pulled through longitudinal bore 120, such that two knots 110 enter the cylindrical portion 122 of longitudinal bore 120 and thus tightly engage the haptic 130 and the thread portion 106 of the knotted elongate stretchable loop extension element 100, in compressive frictional retaining engagement therewith. As is seen in Fig. 2B, the knots 110 of the knotted elongate extension element 100 and the haptic 130 are impeded from passing completely through the longitudinal bore 120 and exiting the connector 102 by at least one of, the compressive frictional retaining engagement and the narrowing of the longitudinal bore 120 at the tapered portion 124.
[0038] Fig. 2C shows the intraocular lens assembly 132 having both haptics 130 thereof tightly engaged with knotted elongate stretchable loop extension elements 100 in the manner described hereinabove with reference to Figs. 2A & 2B. The intraocular lens assembly 132 having both haptics 130 thereof tightly engaged with knotted elongate stretchable loop extension elements 100 is now prepared for insertion into the eye of a patient.
[0039] Reference is now made to Figs. 3A & 3B, which are respectively a simplified pictorial illustration of and a simplified partially sectional view of apparatus for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient, constructed and operative in accordance with another preferred embodiment of the present invention, the apparatus including an elongate stretchable loop extension element 300, a tightenable connector 302 and an haptic 330 of an intraocular lens assembly 304.
[0040] The elongate stretchable loop extension element 300 is preferably a conventional surgical suture, preferably formed of elastomeric flexible material and including a thread portion 306 and a needle 308. Tightenable connector 302 preferably includes a longitudinal bore 320, a first end 322 and a joint 324 at which the diameter of the longitudinal bore 320 narrows. An end 312 of the thread portion 306 of the elongate stretchable loop extension element 300 is preferably folded over. This folding over of the end 312 of the thread portion 306 of the elongate stretchable loop extension element 300 causes the effective diameter of the folded over portion 326 is slightly less than the diameter of the longitudinal bore 320 of the tightenable connector 302.
Tightenable connector 302 has a second end 328 opposite its first end 322.
[0041] Tightenable connector 302 may be any suitable tightenable connector and may be, for example, a shrinkable connector which shrinks in response to application thereto of heat or UV radiation. An example of such a shrinkable connector is a Heat Shrink Fluoropolymer Tubing manufactured by Zeus Inc., headquartered at 620 Magnolia Road, Orangeburg, S.C. U.S.A. The Heat Shrink Fluoropolymer Tubing can be found on page 25 of Catalog G which is available at www.zeusinc.com.
Alternatively, tightenable connector 302 may be a physically deformable connector, which may be deformed by use of a punch or pliers.
[0042] Apparatus for preparation of an intraocular lens assembly according to this embodiment may be supplied to a user in the operative orientation described hereinabove with reference to Figs. 3A and 3B.
[0043] Reference is now made to Fig. 4A ¨ 4C, which illustrate use of apparatus of Figs. 3A & 3B for preparation of an intraocular lens assembly for insertion into the eye of a patient.
[0044] Fig. 4A shows that an haptic 330 of an intraocular lens assembly 332 is inserted into longitudinal bore 320 at second end 328 of tightenable connector while folded over portion 326 at end 312 of the thread portion 306 of the elongate stretchable loop extension element 300 is inserted into first end 322 of tightenable connector 302. Both the haptic 330 and the folded over portion 326 of the elongate stretchable loop extension element 300 are inserted up until the joint 324 in the tightenable connector 302, as seen in Fig. 4A. The diameters of the haptic 330 and the folded over portion 326 of the elongate stretchable loop extension element 300 are slightly less than the diameter of the longitudinal bore 320 of the tightenable connector 302; this causes the haptic 330 and the elongate stretchable loop extension element 300 to become loosely engaged in the tightenable connector 302.
[0045] Fig. 4B shows that the connector is crimped adjacent end 322 in a way such as described in relation to Figs. 3A & 3B above and the cross-section of the longitudinal bore 320 is made smaller and thus tightly engages both the haptic 330 and the folded over portion 326 at end 312 of elongate stretchable loop extension element 300.
[0046] Fig. 4C shows the intraocular lens assembly 332 having both haptics thereof tightly engaged with elongate stretchable loop extension elements 300 in the ' manner described hereinabove with reference to Figs. 4A & 4B. The intraocular lens assembly 332 having both haptics 330 thereof tightly engaged with elongate stretchable loop extension elements 300 is now prepared for insertion into the eye of a patient.
[0047] Reference is now made to Figs. 5A & 5B, which are respectively a simplified pictorial illustration of and a simplified partially sectional view of apparatus for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient, constructed and operative in accordance with yet another preferred embodiment of the present invention, the apparatus including an elongate stretchable loop extension element 500 which is adapted for ultrasonic welding or adhesive bonding.
[0048] The elongate stretchable loop extension element 500 is preferably a conventional surgical suture, preferably formed of elastomeric flexible material and including a thread portion 506 and a needle 508 wherein the thread portion 506 is made of a material which is adapted for ultrasonic welding or adhesive bonding. As seen in Figs. 5A & 5B, an haptic 530 of an intraocular lens assembly 532 is formed at an end 534 thereof with a recess 536 into which an end 538 of the thread portion 506 of the stretchable loop extension element 500 may be inserted.
[0049] Apparatus for preparation of an intraocular lens assembly according to this embodiment may be supplied to a user in the operative orientation described hereinabove with reference to Figs. 5A and 5B with or without equipment or material for ultrasonic welding or adhesive bonding.
[0050] Reference is now made to Fig. 6A & 6B, which illustrate use of apparatus of Figs. 5A & 5B for preparation of an intraocular lens assembly for insertion into the eye of a patient.
[0051] Fig. 6A shows that an end 538 of the thread portion 506 of the elongate stretchable loop extension element 500 is inserted into a recess 536 of an end 534 of an haptic 530 of an intraocular lens assembly 532. The diameter of the end 538 of the thread portion 506 of the elongate stretchable loop extension element 500 approximates the diameter of the recess 536 in the haptic 530 and is thus retained by compressive frictional retaining engagement thereof, when inserted therein. Retention of the end 538 of the thread portion 506 of the elongate stretchable loop extension element 500 by the recess 536 in the haptic 530 is enhanced by the application thereof of either ultrasonic welding or adhesive bonding.
[0052] Fig. 6B shows the intraocular lens assembly 532 having both haptics thereof tightly engaged with elongate stretchable loop extension elements 500 in the manner described hereinabove with reference to Fig. 6A. The intraocular lens assembly 532 having both haptics 530 thereof tightly engaged with elongate stretchable loop extension elements 500 is now prepared for insertion into the eye of a patient.
[0053] It will be appreciated by persons skilled in the art that the present invention is not limited by what has been particularly shown and described hereinabove.
Rather the scope of the present invention includes both combinations and subcombinations of the various features described hereinabove as well as modifications thereof which would occur to persons skilled in the art upon reading the foregoing description and which are not in the prior art.
Claims (22)
1. Apparatus for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient, said apparatus comprising a pair of elongate extension assemblies each adapted for connection to an end of an haptic of said intraocular lens assembly.
2. Apparatus for preparation of an intraocular lens assembly according to claim 1 and wherein each elongate extension assembly includes:
an elongate extension element; and a connector for connecting said elongate extension element to an end of an haptic of said intraocular lens assembly.
an elongate extension element; and a connector for connecting said elongate extension element to an end of an haptic of said intraocular lens assembly.
3. Apparatus for preparation of an intraocular lens assembly according to claim 2 and wherein each elongate extension element comprises a suture portion and a needle.
4. Apparatus for preparation of an intraocular lens assembly according to claim 2 and wherein said connector comprises a generally cylindrical portion having a longitudinal bore formed therewithin, said elongate extension element having at least one knot therein and being adapted to be pulled through said longitudinal bore, thereby causing said at least one knot to lie alongside said end of said haptic within said bore in compressive frictional retaining engagement therewith.
5. Apparatus for preparation of an intraocular lens assembly according to claim 4 and wherein said at least one knot in elongate extension element comprises two knots.
6. Apparatus for preparation of an intraocular lens assembly according to claim 4 and wherein said longitudinal bore includes a narrowed tapered portion and said at least one knot and said haptic are impeded from passing through said connector by at least one of said compressive frictional retaining engagement and said narrowing of said tapered portion.
7. Apparatus for preparation of an intraocular lens assembly according to claim 2 and wherein said connector is a tightenable sleeve.
8. Apparatus for preparation of an intraocular lens assembly according to claim 7 and wherein said tightenable sleeve is a shrinkable sleeve.
9. Apparatus for preparation of an intraocular lens assembly according to claim 7 and wherein said tightenable sleeve is a physically deformable sleeve.
10. Apparatus for preparation of an intraocular lens assembly according to claim 1 wherein each elongate extension assembly includes an elongate extension element and wherein an end of said elongate extension element is fixable to an end of said haptic by at least one of welding and adhesive bonding.
11 . Apparatus for preparation of an intraocular lens assembly according to claim 10 wherein end of said haptic has a recess formed therein, said recess having a diameter approximating the diameter of said elongate extension element.
12. A method for preparation of an intraocular lens assembly prior to insertion thereof into the eye of a patient, the method comprising:
providing a pair of elongate extension assemblies each adapted for connection to an end of an haptic of said intraocular lens assembly; and connecting one of said pair of elongate extension assemblies to each haptic of said intraocular lens assembly.
providing a pair of elongate extension assemblies each adapted for connection to an end of an haptic of said intraocular lens assembly; and connecting one of said pair of elongate extension assemblies to each haptic of said intraocular lens assembly.
13 . A method for preparation of an intraocular lens assembly according to claim 12 and wherein each elongate extension assembly includes an elongate extension element and a connector for connecting said elongate extension element to an end of an haptic of said intraocular lens assembly and wherein said connecting comprises using said connector to tightly engage one of said pair of elongate extension assemblies to each haptic of said intraocular lens assembly.
14. A method for preparation of an intraocular lens assembly according to claim 13 and wherein each elongate extension element comprises a suture portion and a needle.
15. A method for preparation of an intraocular lens assembly according to claim 13 and wherein said connector comprises a generally cylindrical portion having a longitudinal bore formed therewithin, said elongate extension element having at least one knot therein and being adapted to be pulled through said longitudinal bore, thereby causing said at least one knot to lie alongside said end of said haptic within said bore in compressive frictional retaining engagement therewith and wherein said connecting comprises pulling said elongate extension element through said longitudinal bore, thereby causing said at least one knot to lie alongside said end of said haptic within said bore in compressive frictional retaining engagement therewith.
16. A method for preparation of an intraocular lens assembly according to claim 15 and wherein said longitudinal bore includes a narrowed tapered portion and said at least one knot and said haptic are impeded from passing through said connector by at least one of said compressive frictional retaining engagement and said narrowing of said tapered portion.
17. A method for preparation of an intraocular lens assembly according to claim 13 and wherein said connector is a tightenable sleeve and wherein said connecting comprises tightening said sleeve when both an end of an haptic and an end of said elongate extension element are located therewithin, thereby tightly engaging said end of said haptic and said end of said elongate extension element.
18. A method for preparation of an intraocular lens assembly according to claim 17 and wherein said tightening comprises application of at least one of heat or UV
radiation.
radiation.
19. A method for preparation of an intraocular lens assembly according to claim 17 and wherein said tightening comprises physically deforming said tightenable sleeve.
20. A method for preparation of an intraocular lens assembly according to claim 12 and wherein said connecting comprises fixing an end of said elongate extension element to an end of said haptic by at least one of welding and adhesive bonding.
21. A method for preparation of an intraocular lens assembly according to claim 20 and wherein said fixing comprises inserting said elongate element into a recess formed in an end of said haptic.
22. A method for preparation of an intraocular lens assembly according to claim 21 and wherein said inserting engages said elongate element in end of said haptic by compressive frictional retaining engagement thereof.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201514863807A | 2015-09-24 | 2015-09-24 | |
| US14/863,807 | 2015-09-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2928918A1 true CA2928918A1 (en) | 2017-03-24 |
Family
ID=58385419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2928918A Abandoned CA2928918A1 (en) | 2015-09-24 | 2016-05-04 | Method and apparatus for preparation of an intraocular lens for subsequent insertion into the eye of a patient |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2928918A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10973624B1 (en) | 2020-04-29 | 2021-04-13 | Long Bridge Medical, Inc. | Devices to support and position an intraocular lens within the eye and methods of use |
-
2016
- 2016-05-04 CA CA2928918A patent/CA2928918A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10973624B1 (en) | 2020-04-29 | 2021-04-13 | Long Bridge Medical, Inc. | Devices to support and position an intraocular lens within the eye and methods of use |
| US11759309B2 (en) | 2020-04-29 | 2023-09-19 | Long Bridge Medical, Inc. | Devices to support and position an intraocular lens within the eye and methods of use |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5028421B2 (en) | Cables and crimps for bone surgery | |
| DE2646323C2 (en) | Penile endoprosthesis | |
| CN107847254A (en) | Hone lamella with dynamic element | |
| EP3193745B1 (en) | Clip for a medical implant | |
| JP2014527847A (en) | Minimally invasive crimping element and cable for bone cerclage | |
| US20140276815A1 (en) | External Bone Fixation System | |
| US7407482B2 (en) | Penile prosthesis devices and methods | |
| CN107405142A (en) | Suture fixing device | |
| JP2010194309A (en) | Receiving part for receiving rod for coupling the rod to bone anchoring element and bone anchoring device with the receiving part | |
| US20160067016A1 (en) | Fixture remover for implant | |
| JP2010519968A (en) | Grooved crimp with set screw | |
| CA2928918A1 (en) | Method and apparatus for preparation of an intraocular lens for subsequent insertion into the eye of a patient | |
| JP2012530583A (en) | Coupling device | |
| US10201415B2 (en) | Method and apparatus for preparation and insertion of an intraocular lens into the eye of a patient | |
| WO2012117402A1 (en) | Anastomosis device | |
| KR101523606B1 (en) | The wound retractor | |
| US11045350B2 (en) | Infusion support device and method | |
| TW200901930A (en) | Steel cable and ball body set for fixing vertebrae | |
| US20160262877A1 (en) | Method And Apparatus For Preparation And Insertion Of An Intraocular Lens Into The Eye Of A Patient | |
| TWI306396B (en) | ||
| US20220001143A1 (en) | Device for attaching a catheter | |
| US20030050653A1 (en) | Device for holding a sleeve and a method for manufacturing such a device | |
| KR102074809B1 (en) | Device for trapping the end of at least one fascicle of soft material in a bone tunnel | |
| US8858480B1 (en) | Adjustable, multi-axis motion stabilizer apparatus and method | |
| US10478265B2 (en) | Cranial fixation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |
Effective date: 20200831 |