Intraocular lens with integrated locking unit for haptics

Abstract

This invention relates to an intraocular lens (1) having at least one optical portion (2, 24), a loop (3) connected to the optical portion (2, 24), and a principal optical axis (A) passing through the anterior side (4) and the posterior side (5) of the optical portion (2, 24). The loop (3) includes at least one loop ring (6, 7), wherein connecting elements (8, 14) of the intraocular lens (1) are integrated on the loop ring (6, 7), and cooperating connecting elements (9, 15) of the intraocular lens (1) are integrated on the optical portion (2, 24). The connecting element (8, 14) is formed on or integrated into the connector (2a) connected to the optical part (2, 24). The connecting element (8, 14) is formed for direct connection to the mating connecting element (9, 15). In the connected state of the connecting element (8, 14) and the mating connecting element (9, 15), the radial distance of the outer edge segment (6c, 7c) of the loop (6, 7) from the optical part (2) is shorter than that in the disconnected state of the connecting element (8, 14) and the mating connecting element (9, 15).

Description

Technical Field

[0001] One aspect of the present invention relates to an intraocular lens having at least one optical portion and a loop connected to the optical portion. The intraocular lens has a principal optical axis passing through the anterior and posterior sides of the optical portion. The loop has at least one first loop ring. Existing technology

[0002] Intraocular lenses are known in various embodiments. These intraocular lenses have an optic section. The optic section is adjacent to a loop at its radially outer edge. The loop can have one of many different designs. It is known that at least one loop is arranged as a loop protruding from the optic section. The loop can have a cord-like design. The loop can be joined to the optic section at both ends. Furthermore, embodiments in which the loop is joined to the optic section at only one end are also known. The other end is cantilevered. In this respect, such a loop is also referred to as a C-ring.

[0003] An intraocular lens (IOL) implanted in the eye's capsular bag can also grow together with the capsular bag. In this process, a loop grows together with the capsular bag. In this case, the IOL is positioned rather fixed and immovably on the capsular bag. When the lens is in such a state within the capsular bag, it is difficult to change the lens's position. In this context, in order to make the desired rotation, the loop grown together with the capsular bag must first be removed. Such positional adjustments within the capsular bag may occur particularly with IOLs having specific imaging properties (e.g., astigmatic IOLs). The effect of this is to correct astigmatism as much as possible, as astigmatism is intended to be corrected by the astigmatic IOL.

[0004] US 4504981 discloses an intraocular lens having an optic and a loop having two loop rings. An aperture is formed in one loop ring. Additionally, an aperture is formed in the optic. Using an auxiliary tool separate from the intraocular lens, the loop rings can be engaged in the apertures within the loop rings. The loop rings can be pulled toward the optic. If the auxiliary tool is then further inserted into the aperture in the optic, the loop rings can be fixed relative to the optic in the position where they were already pulled by the auxiliary tool. However, this requires the use of an auxiliary tool that is not part of the intraocular lens as a separate holding member, so that even the holding rings can be fixed to the optic. Such configurations typically require a separate auxiliary holding tool of this type.

[0005] Furthermore, in the prior art, the position of the retaining ring relative to the optics is only provided for the actual implantation surgery of the intraocular lens. This is because the intention in this case is to avoid the relatively delicate cantilever retaining ring being undesirably compressed or its orientation undesirably altered. Therefore, the solution provided herein is, in principle, not suitable for the proper removal of the implanted intraocular lens, which has already grown with the capsular bag, from the capsular bag in order to allow the implanted intraocular lens to rotate within the capsular bag. Summary of the Invention

[0006] The object of this invention is to develop an intraocular lens that allows for improved positioning and fixation of the components of the intraocular lens relative to each other.

[0007] This objective is achieved by an artificial lens with the features of claim 1.

[0008] One aspect of the invention relates to an intraocular lens (IOL). The IOL includes at least one optical portion. Furthermore, the IOL includes a loop. The loop is coupled to the optical portion. Specifically, the loop is directly connected to the optical portion. The IOL has a principal optical axis passing through the front and rear sides of the optical portion (especially centrally passing through the middle). The loop has at least one first loop ring. A connecting element of the IOL is integrated on the loop ring. Thus, the connecting element and the loop ring are a single piece. A mating connecting element of the IOL is integrated on the optical portion or on a connector coupled to the optical portion. Thus, the mating connecting element can also be formed on a connector that completely or partially surrounds the optical portion. The mating connecting element and the optical portion or connector are formed as a single piece. The connector does not have optical imaging properties. The connector is directly adjacent to the peripheral edge of the optical portion. A segmented connector can be part of a ring extending around the optical portion. However, the connector can also be a connector on the optical portion with any desired geometric design, wherein the connector does not form a ring geometry or part of a ring. The connector can be a component of the intraocular lens separate from the loop. The connector can be designed to extend entirely around the optics (e.g., as a ring) or only partially around the optics. Specifically, the connector is positioned at the mid-latitude of the optics. Therefore, the connector is preferably arranged to extend at least partially around the principal optical axis. Specifically, the connector and the optics are formed as a single piece.

[0009] The connecting element is designed to directly connect with a mating connecting element. In the connected state, the radial distance from the optic to the outer edge segments of the loop is shorter compared to the disconnected state. Therefore, a locking unit integrated into the intraocular lens is created by the connecting element and the mating connecting element. This allows the loop to be held in a defined position relative to the optic. In the connected state, the two integrated elements are directly connected to each other. Therefore, the connected state can be permanently held by these elements themselves. Thus, no separate retainer is needed to maintain the connected state defined in this way, in which the loop is fixed in a radially inwardly pulled position relative to the optic. As a result of directly connecting the connecting element and the mating connecting element, this configuration also makes it possible to avoid damage to the intraocular lens (especially within the optic). This risk could arise whenever an external retainer is required to maintain such a connected position between the retaining ring and the optic. Because in the connected state, the outer edge segment of the loop is radially pulled relative to the first optical element, and the outer edge segment is therefore radially pre-tensioned, a corresponding force acts on the connecting element and the mating connecting element. However, these forces can be absorbed by these connecting elements. Due to the design of the connecting element and the mating connecting element, damage to these elements can be avoided first, and damage to the optical element can be avoided second.

[0010] In the disconnected state between the connecting element and the mating connecting element, the loop is positioned relative to the optical element in a base position. In this base position, compared to the connected state between the connecting element and the mating connecting element, the outer edge segments of the loop are further radially away from the optical element.

[0011] This configuration of the intraocular lens itself advantageously allows for relatively simple disassembly of the loop that has grown together with the capsular bag. In this context, it is still necessary to use an auxiliary tool to pull the connecting element to the optics. In particular, this allows for the removal of the overgrown loop from the capsular bag. With the aid of this auxiliary tool, the connecting element is then positioned such that it is engaged with the mating connecting element, a connection that can be maintained without further actuation and without the presence of any additional auxiliary tool. Thus, only the action of engaging the connecting element with the mating connecting element requires an auxiliary tool. The resulting connection is then maintained solely by the connecting element of the intraocular lens itself and the mating connecting element.

[0012] Specifically, at least one end of the loop is directly connected to a first point of the optics or connector, particularly in a non-detachable manner without damage. A connecting element is arranged on the loop (particularly as a single piece with the loop) at a distance from this end of the loop. This end is permanently connected to the optics or connector, regardless of the connection state between the connecting element and its mating element, and regardless of the disconnection state of the connecting element and its mating element, and in particular, the position of this end relative to the optics or connector does not change. The loop can be configured to terminate at the connector or optics with only one end, while the other end of the loop is arranged in a cantilever manner. If, in an exemplary embodiment, the loop has an additional end connected to a second point of the optics or connector, different from the first point, then the corresponding explanation of the first end as presented above applies to the connecting element. Thus, the two ends terminate at, but particularly, different points, of the connector or optics. The connection point between the connecting element and the mating connecting element is spaced apart from and formed independently of a first or second point on the optical part or connector. The optical part and at least one loop (in particular, all loops) of the lens are formed as a single piece. This means that the optical part (optionally together with the connector) is manufactured together with the loops during the basic manufacturing process.

[0013] The connecting element is a component of the loop that is different from the end of the loop. The connecting element is arranged on the loop at a certain distance from one end of the loop.

[0014] In an exemplary embodiment, the intraocular lens is formed from a single, one-piece optical element. Specifically, this optical element and the loop are formed as a single piece. Thus, the intraocular lens as a whole has a one-piece form.

[0015] In another exemplary embodiment, the intraocular lens is formed from a first monolithic optical element. This first optical element may be formed as a monolith with a loop. In this exemplary embodiment, the intraocular lens includes a second optical element. This second optical element is separate from the first optical element. The second optical element and the first optical element together form the optical system of the intraocular lens. In this exemplary embodiment, two optical elements may be disposed abutting each other. These two optical elements may be arranged in series in the direction of the principal optical axis. At least two optical elements may be interconnected by connecting elements (e.g., connecting rings) of the intraocular lens. In an exemplary embodiment, at least one mating connecting element may be formed in the second optical element. In particular, in the direction perpendicular to the principal optical axis, embodiments of the second optical element are larger than the first optical element. Therefore, the second optical element has a radial protrusion relative to the first optical element. In particular, at least one mating connecting element is formed in this protrusion.

[0016] In another exemplary embodiment, the intraocular lens includes an optic portion and a loop separate from the optic portion. In this exemplary embodiment, the two components are not a single-piece design. Specifically, the loop forms a support frame having a loop ring and a receiving portion for the optic portion. This receiving portion can be a ring-shaped member or a segmented member. The optic portion can be inserted into the receiving portion such that the optic portion is grasped and held against the receiving portion at least segmentally at its latitudes. At least one mating connecting element is formed in the optic portion. However, the at least one mating connecting element may also be formed in the receiving portion.

[0017] The connecting element includes a connecting portion by means of which the connecting element is directly connected to the loop. Furthermore, the connecting element includes a connecting plate formed on the end face of the connecting portion. Specifically, the connecting plate is configured to directly engage with the mating connecting element. In this configuration, the connecting element and the mating connecting element engage with each other. Therefore, the mechanical engagement operation forms an interlocking connection. This creates a particularly simple yet mechanically loadable direct connection between the two elements.

[0018] The connecting portion forms a stable attachment unit to the loop. Therefore, a loadable attachment point is formed at the interface between the loop and the connecting element. This prevents the connecting element from being pulled off the loop. This configuration is advantageous in this respect because the corresponding tension force acts precisely at this location when the loop is intended to be removed from its state of being grown with the pouch.

[0019] In addition, this connector also serves as a sturdy and loadable mounting component for connecting plates.

[0020] The connecting part includes at least one connecting rod. This connecting rod extends radially toward the optical part relative to the main optical axis and protrudes from the inside of the loop. In this case, the inner surface of the loop faces the optical part. Such an attachment point and the orientation of this connecting rod result in further advantages as mentioned above. In particular, due to the straight design of the connecting rod, the tension force of the auxiliary tool can be very advantageously transferred from the connecting part to the loop. This also facilitates pulling along a very straight line and direct force transmission. The connecting rod is also simply produced in its straight configuration. A particularly simple design is achieved.

[0021] In particular, when considered in the direction of the main optical axis, the connecting rod is thinner than the loop to which it is terminated.

[0022] In an exemplary embodiment, the connecting rod and the connecting plate formed on its end side form an L-shaped section. In this context, the advantages mentioned above are particularly evident. This section has a simple design. This section is mechanically stable and can be loaded accordingly. However, the L-shaped base arm forms a simple connecting plate, which can firstly be easily gripped by an auxiliary tool so that the tension force is thus transmitted very directly from the auxiliary tool to the connecting rod, and then from the connecting rod to the loop. Secondly, this L-shape also allows for simple connection with mating connecting elements. The connection is achieved and maintained simply by this connecting plate in the form of an L-shaped arm engaging with the mating connecting element. In this case, the L-shape also forms a configuration that remains very stable in dimensions. Therefore, the connection state also remains permanently stable. The longer L-shaped arm is formed by the connecting rod.

[0023] In the disconnected state, the connecting part is arranged in a cantilever manner between the connecting element and the mating connecting element. In this disconnected state, the connecting part is oriented in the direction of the optical part. In this disconnected state, the connecting part is arranged without contacting the optical part. This positioning and orientation has advantages on the one hand in terms of handling with auxiliary tools, and on the other hand in terms of maintaining the connected state.

[0024] In an exemplary embodiment, the connection is maintained independently, without additional external fasteners, solely by means of the connecting element and the mating connecting element through the direct engagement of the elements. This allows for a significantly reduced number of components while maintaining a mechanically loadable and stable connection.

[0025] An exemplary embodiment provides a connecting element including a connecting portion (particularly a straight connecting rod) by means of which the connecting element is directly connected to the loop. A magnet is arranged on this connecting portion. The mating connecting elements include opposing magnets or opposing magnets, and thus the connection is maintained by the magnetic holding force of the two magnets. This configuration forms an alternative to the mechanical engagement of the components of the locking unit. The two magnets mechanically interact when the connecting element is pulled or guided towards the optical section. The magnetic attraction generated in this process forms a holding force, by means of which the retaining ring remains in a fixed position relative to the optical section in the connected state of the connecting element and the mating connecting element.

[0026] In an exemplary embodiment, the magnet is produced together with the loop by injection molding. Alternatively, the magnet can be produced together with the loop as a 3D printed part.

[0027] The entire intraocular lens can be formed as a single piece. Alternatively, the loop can be formed independently of the optics, and then the optics can be inserted into or held against the loop. In this context, the optics can be formed of a polymer material. The loop can be realized as an injection-molded part or a 3D-printed part. However, it is also possible for the entire intraocular lens, including the optics and the loop, to be formed as a single piece (particularly from a polymer material).

[0028] An exemplary embodiment provides a connecting element including a connecting portion by means of which the connecting element is directly connected to a loop. The connecting portion includes at least two separate, particularly straight, connecting rods. These at least two connecting rods are connected, in particular, in a single piece, to different points on the inner side of the loop. In an advantageous embodiment, the two connecting rods protrude from different points on the inner side of the loop and are oriented in the direction of the optical part.

[0029] In an advantageous exemplary embodiment, these connecting rods are interconnected at their ends facing the optics. Specifically, these connecting rods can be formed as a single piece at these ends. This creates connecting elements at different points on the loop. This allows for the application of greater tension, thus enabling reliable removal of the loop from the capsular bag even when they are clearly joined together. The desired rotation of the intraocular lens relative to the capsular bag in this case is then more easily achieved.

[0030] In an exemplary embodiment, the mating connecting element is a through-hole. This means that the mating connecting element is designed to be fully passable. Therefore, liquid can also be introduced through this through-hole. This makes it easy to introduce this liquid between the capsule and the optics of the intraocular lens.

[0031] Further features of the invention become clear from the claims, the drawings, and the description of the drawings. The features and combinations of features mentioned in the foregoing description, and the features and combinations of features mentioned in the following description of the drawings and / or shown only in the drawings, can be used not only in the correspondingly specified combinations, but also in other combinations, without departing from the scope of the invention. Therefore, the invention should also be considered to include and disclose configurations of the invention that are not explicitly shown and illustrated in the drawings, but which arise from and can be created from individual combinations of features. The disclosure should also be considered to extend to combinations of configurations and features that do not possess all the features of the independent claims as stated in the initial wording. Furthermore, the disclosure should be considered to extend to combinations of embodiments and features, particularly those embodiments explained above, that exceed or depart from the combinations of features stated in the dependent references to the claims.

[0032] The specific values ​​indicated for parameters in the document, as well as the indications of parameter ratios or parameter values ​​relating to exemplary embodiments for defining the lens of the eye, should be considered to be included in the scope of the invention even in the context of deviations caused, for example, due to measurement errors, system failures, DIN tolerances, etc., which means that the interpretation of substantially corresponding values ​​and indications should also be understood therein. Attached Figure Description

[0033] Exemplary embodiments of the present invention will now be explained in more detail with reference to the accompanying drawings. In the drawings:

[0034] Figure 1a A three-dimensional representation of a first exemplary embodiment of an intraocular lens according to the present invention is shown;

[0035] Figure 1b A three-dimensional representation of another exemplary embodiment of the intraocular lens according to the present invention is shown;

[0036] Figure 2 A plan view of an exemplary embodiment of the intraocular lens according to the present invention is shown in a disconnected connection state between the connecting element and the mating connecting element;

[0037] Figure 3 It shows according to Figure 2 A cross-sectional representation of the intraocular lens;

[0038] Figure 4 It shows according to Figure 2 A plan view of the intraocular lens, but in a connected state between the connecting element and the mating connecting element;

[0039] Figure 5 It shows according to Figure 4 A cross-sectional representation of the intraocular lens;

[0040] Figure 6 It shows the corresponding Figure 5 The view in the image shows another section, but the connection state between the connecting element and the mating connecting element is... Figure 5 Alternative solutions to the connection states shown;

[0041] Figure 7 A cross-sectional representation of an exemplary embodiment of an intraocular lens in a connected state between a connecting element and a mating connecting element is shown, wherein the connecting element and the mating connecting element are alternatively designed according to Figures 2 to 6 Examples;

[0042] Figure 8 A schematic plan view of another exemplary embodiment of an intraocular lens in a disconnected connection state between a connecting element and a mating connecting element is shown.

[0043] Figure 9 A cross-sectional view of another exemplary embodiment of an intraocular lens in a disconnected state between a connecting element and a mating connecting element is shown; and

[0044] Figure 10 A cross-sectional view of another exemplary embodiment of an intraocular lens in a disconnected state between a connecting element and a mating connecting element is shown. Detailed Implementation

[0045] In the accompanying drawings, elements that are identical or have the same function are given the same reference numerals.

[0046] Figure 1a A three-dimensional representation of a first exemplary embodiment of an artificial eye lens (which is an artificial lens 1) is shown. The artificial lens 1 includes an optical portion 2 and a loop 3 adjacent to the optical portion. The artificial lens 1 is foldable and can be inserted into the eye through a small incision. The optical portion 2 (which is essential for the optical imaging properties of the eye lens 1) includes a principal optical axis A. Furthermore, when viewed in the direction of this principal optical axis A, the optical portion 2 includes a first optical surface or optical side 4 (which may be anterior) and a second optical surface or optical side 5 (which may be posterior) opposite to the first optical surface or optical side. With the eye lens 1 implanted in the eye, the exemplary anterior side faces the cornea, while the posterior side faces away from the cornea.

[0047] Figure 1b A three-dimensional representation of another exemplary embodiment of an artificial eye lens in the form of an intraocular lens 1 is shown. The lens differs from... Figure 1a The embodiment features a different loop 3. The artificial lens 1 is held in the eye by means of the loop 3.

[0048] In these embodiments, sides 4 and 5 are curved, particularly in a non-planar manner, and especially in a convex manner. Sides 4 and / or 5 may also be concave or planar. On at least one side 4, 5, a diffraction pattern may be formed on this convex base shape.

[0049] Figure 2 It shows according to Figure 1aA schematic plan view of an intraocular lens 1 according to an exemplary embodiment. In the exemplary embodiment, the loop 3 includes a first loop 6 and a second loop 7. The two separate loops 6 and 7 are connected to different circumferential positions of the optical unit 2. In the illustrated exemplary embodiment, the loop 6 has a rope-like embodiment. The loop is connected to the optical unit 2 via a first end 6a. The loop is also connected to the optical unit 2 via an opposite second end 6b. The exemplary embodiment provides corresponding cases regarding the ends 7a and 7b of the second loop 7. In the exemplary embodiment, the loops 6 and 7 are U-shaped.

[0050] The connecting element 8 is integrated onto the first loop 6. This means that the connecting element 8 and the loop 6 are formed as a single piece. A mating connecting element 9 is formed in the optical section 2. By way of example, the mating connecting element 9 can be a through hole. However, the mating connecting element can also be a simple recess or recess. In particular, the mating connecting element can also be a blind hole.

[0051] Connecting element 8 is designed to directly connect with mating connecting element 9. When considered in the radial direction relative to the main optical axis A, connecting element 8 and mating connecting element 9 are designed such that, in their connected state, the loop 6 is held in a position more stable than in… Figure 2 The disconnected connection position or disconnected state shown is closer to the optical section 2. It is evident that the connecting element 8 has a connecting portion 10. Through this connecting portion 10 (in this case, the connecting portion has at least one connecting rod 11), the connecting element 8 is directly connected to the inner side 12 of the loop 6, particularly forming a single piece therewith. Furthermore, the connecting portion 8 includes a connecting plate 13. The connecting plate 13 is formed on the end face of the connecting portion 10. Specifically, the connecting plate 13 is arranged at the end of the connecting portion 10 facing the optical section 2. Specifically, the connecting rod 11 has a straight embodiment. As is evident, this connecting rod extends from the inner side 12 toward the optical section 2. Specifically, the connecting rod 11 is formed without a cavity. The connecting rod 11 protrudes from the inner side 12 and extends in the direction of the optical section 2.

[0052] In the disconnected state, such as Figure 2 As shown, the connecting element 8 is arranged at a certain distance from the optical section 2 and does not contact the optical section. Advantageously, in the exemplary embodiment, a corresponding additional connecting element 14 is formed on the second loop 7. This additional connecting element is formed to connect with another cooperating connecting element 15 formed in the optical section 2. Figure 2 The exemplary embodiments shown are in accordance with Figure 1a The artificial lens is slightly different. Figure 1aAn additional peripheral connector 2a is provided. This connector 2a (in this case, peripheral) surrounds the optical part 2 and does not have optical imaging function. Furthermore, the peripheral connector 2a at least partially surrounds the optical part 2 in the circumferential direction surrounding the principal optical axis A. Specifically, the connector 2a extends at least one segment or annular segment, which is arranged at the mid-latitude line of the optical part 2, in the region of the loop 3. Figure 2 In comparison, Figure 1a In the example, the mating connecting element 9 is formed in this connector 2a. Correspondingly, the mating connecting element 15 is also formed in this connector 2a. The connector 2a can be in the form of a ring or a segment.

[0053] The hole geometry of the mating connecting elements 9 and 15 can be without corners, for example, it can be near-circular or elliptical. The hole geometry of the mating connecting elements can also be polygonal, such as quadrilateral. The geometry of connecting elements 8 and 14 (especially connecting plate 13) can be without corners or can be polygonal. In particular, the geometry of connecting elements 8 and 14 is adapted to match the geometry of mating connecting elements 9 and 15. This makes the connection simple and accurate.

[0054] Figure 3 Along Figure 2 The cross-section cut by line III-III depicts the disconnected connection state of the intraocular lens 1 with respect to the connecting element 8 and the mating connecting element 9. It is evident that the connecting plate 13 protrudes axially beyond the connecting rod 11. Figure 3 The L-shape of the connecting element 8 is shown in the figure.

[0055] Figure 4 The plan shows the following based on Figure 2 and Figure 3 The artificial lens 1. However, this figure shows the connection state between the connecting element 8 and the mating connecting element 9. Similarly, this figure shows the connection state between the connecting element 14 and the mating connecting element 15.

[0056] When from Figure 2 and Figure 3 To achieve this connection at the beginning, an auxiliary tool (not shown) can be used to pull the connecting element 8 toward the mating connecting element 9. This will then connect the connecting element 8 to the mating connecting element 9.

[0057] By way of example, the auxiliary tool may have a hook-like component that can be engaged with the rear of the connecting plate 13 and pulled toward the mating connecting element 9. Generally, the connecting element 8 may also be provided with an engagement region 20. The auxiliary tool can engage with this engagement region to pull the connecting element 8 toward the mating connecting element 9. By way of example, the engagement region 20 may be formed in the connecting rod 11. This engagement region may be a blind hole or a through hole. In particular, the engagement region 20 is formed at a distance from the connecting plate 13. The connecting element 14 may also have a corresponding engagement region.

[0058] As shown in this regard, along Figure 4 The section cut by the cutting line VV in the middle Figure 5 As can be clearly seen from the cross-section, the connecting plate 13 engages with the mating connecting element 9. This results in an axial overlap engagement between the mating connecting element 9 and the connecting plate 13. Furthermore, the outer edge segment 6c of the first loop 6 is arranged at a radial distance from the optical section 2 that is consistent with the radial distance from the optical section 2 according to the... Figure 2 and Figure 3 The difference is smaller in the disconnected state. The same situation can also occur in the outer edge segment 7c of the loop 7. Therefore, the edge segment 6c is pulled towards the optical part 2. As a result of the connection state between the connecting element 8 and the mating connecting element 9, this position, which has been shifted towards the optical part 2, is also maintained in a permanently fixed manner. The connecting plate 13 hooks into this mating connecting element 9. Therefore, the intraocular lens 1 has an integrated locking unit, which includes the connecting element 8 and the mating connecting element 9. In particular, the connecting element 14 and the mating connecting element 15 also constitute part of this locking unit.

[0059] Figure 6 With similar Figure 5 The cross-section shows an alternative embodiment. Therefore, in this alternative embodiment, the connecting plate 13 is not engaged to the mating connecting element 9 from the second optical side 5, but rather from the first optical side 4.

[0060] Figure 7 Another exemplary embodiment is shown in cross-section. (and) Figures 2 to 6 In contrast, the connecting plate 13 is not provided here. Instead, the connecting part 10 is specifically formed by the connecting rod 11. The magnet 16 is arranged at the end of the connecting rod facing the optical part 2. The opposing magnet 17 is arranged in the optical part 2. Figure 7 The connection between magnet 16 and magnet 17 is shown. Therefore, a connection is also formed between connecting element 8 and mating connecting element 9. Preferably, additional connecting element 14 and mating connecting element 15 may also have corresponding designs.

[0061] In another exemplary embodiment, a connecting element 8 with a connecting plate 13 may be provided, which is directly and mechanically engaged with a mating connecting element 9. An additional connecting element 14 may be provided, which includes a magnet 16. In this embodiment, the mating connecting element 15 may have a corresponding opposing magnet 17. Thus, different concepts of connecting elements and mating connecting elements are realized in the artificial lens 1.

[0062] Figure 8 A simplified plan view illustrates another exemplary embodiment of the intraocular lens 1. Compared to the previous example, this exemplary embodiment sets the connecting element 8 to have two separate connecting rods 11a and 11b, rather than just one connecting rod 11. Alternatively, more than two such separate connecting rods can be implemented. (As shown in...) Figure 8 As is evident, the first connecting rod 11a merges with a first point 18 on the inner side 12 of the first loop 6. The second connecting rod 11b merges with a second point 19 on the inner side 12, which is different from the first point. In particular, the two connecting rods 11a and 11b can be arranged to form a V-shape. The two ends of the connecting rods 11a and 11b facing the optical part 2 can be connected to each other. These two ends can be formed together as a single piece. A connecting plate 13 or a magnet 16 can be arranged at this merged end. With an appropriate force acting on the connecting element 8 in the direction of the main optical axis A, this configuration allows the outer edge segment 6c of the first loop 6 to be pulled toward the optical part 2. This can be done with a higher tension force compared to the exemplary embodiment described above.

[0063] Figure 9 A further exemplary embodiment of the artificial lens 1 is shown in cross-section. In this exemplary embodiment, the optical portion 2 and the loop 3 are formed separately. This means that the optical portion and the loop are independent components in their respective cases. The loop 3 includes loop rings 6 and 7. Furthermore, the loop 3 includes a receiving portion 21. In this exemplary embodiment, the receiving portion is a completely closed circumferential annular member 22. The annular member 22 may also be as follows: Figure 1a The connector 2a is shown. The optical part 2 is housed and held in the annular member 22. The loop 3, having loops 6 and 7 and the annular member 22, forms a support frame. The loop 3 is designed as a single piece.

[0064] Figure 10 A further exemplary embodiment of the intraocular lens 1 is shown in cross-section. The intraocular lens 1 includes a base lens 23. The base lens 23 includes a first optical element 2. The base lens 23 includes a loop 3. The loop 3 includes loop rings 6 and 7. Regarding orientation, these loop rings can be adjusted according to… Figure 9 The configuration is formed within. These loops can also be arranged and oriented differently, just like... Figure 9The loops 6 and 7 in the exemplary embodiments are the same, for example, as Figure 3 and Figure 5 or such Figure 8 In.

[0065] In an exemplary embodiment, the base lens 23 is preferably formed as a single piece. Furthermore, the artificial lens 1 includes a second optical element 24. This second optical element 24 is formed separately from the base lens 23. The second optical element 24 (which also constitutes a lens) is arranged in series with the first optical element 2. Thus, an optical system 25 of the artificial lens 1 is formed. In particular, the second optical element 24 can rest against the first optical element 2. The second optical element 24 is connected to the first optical element 2 for positional stability. Figure 10 (Not depicted in the image). Preferably, the embodiment of the second optical part 24 is larger than the first optical part 2. This means that, in the direction perpendicular to the principal optical axis A, the embodiment of the second optical part 24 is larger than the first optical part 2. This forms a radial protrusion 26 of the second optical part 24 compared to the first optical part 2. Preferably, at least one mating connecting element 9, 15 is formed in this protrusion 26.

[0066] Magnets (especially such as Figure 7 The alternative to (in) can also be set according to Figure 9 or Figure 10 In an exemplary embodiment.

Claims

1. An intraocular lens (1) having at least one optical portion (2, 24), a loop (3) connected to the optical portion (2, 24), and a principal optical axis (A) passing through the front side (4) and rear side (5) of the optical portion (2, 24), the loop (3) including at least one loop ring (6, 7), wherein a connecting element (8, 14) of the intraocular lens (1) is integrated on the loop ring (6, 7) and a cooperating connecting element (9, 15) of the intraocular lens (1) is integrated on the optical portion (2, 24) or integrated on a connector (2a) connected to the optical portion (2, 24), wherein, The connecting element (8, 14) forms a connecting element (9, 15) for direct connection to the mating connecting element, and wherein, in the connected state of the connecting element (8, 14) and the mating connecting element (9, 15), the outer edge segments (6c, 7c) of the loop (6, 7) are arranged at a radial distance from the optical part compared to the disconnected state of the connecting element (8, 14) and the mating connecting element (9, 15), wherein the ends (6a, 6b, 7a, 7b) of the loop (6, 7) are directly connected to the optical part (2, 24) or the connector (2a) at a first point, wherein the connecting element (8, 14) is arranged in On the loop (6, 7), at a certain distance from the end (6a, 6b, 7a, 7b), the connecting element (8, 14) includes a connecting portion (10) by means of which the connecting element (8, 14) is directly and permanently connected to the loop (6, 7), and the connecting element (8, 14) has a connecting plate (13) formed on the end face of the connecting portion (10), wherein the connecting plate (13) is configured to directly engage with the mating connecting element (9, 15), and in the disconnected state, the connecting portion (10) is arranged in a cantilever manner in the direction of the optical part and is arranged so as not to contact the optical part (2, 24). The connecting part (10) has at least one connecting rod (11) that protrudes from the inside (12) of the loop (6, 7) and extends radially toward the optical part (2, 24).

2. The intraocular lens (1) as described in claim 1. in, The connecting rod (11) is straight.

3. The intraocular lens (1) as described in claim 2. in, The connecting rod (11) and the connecting plate (13) form a section with an L-shaped cross section.

4. The intraocular lens (1) as described in any one of claims 1 to 3. in, The direct engagement between the connecting element (8, 14) and the mating connecting element (9, 15) results in the connection being maintained independently without the need for additional external fasteners.

5. The intraocular lens (1) as described in claim 1. in, The connecting element (8, 14) has a straight connecting rod (11) by means of which the connecting element (8, 14) is directly and permanently connected to the loop (6, 7), wherein a magnet (16) is arranged on the connecting rod (11), and the mating connecting element (9, 15) has opposing magnets (17) such that the connection is maintained by the magnetic holding force of the two magnets (16, 17).

6. The intraocular lens (1) as described in claim 5. in, The magnet (16) is produced together with the connector (10) by injection molding, or produced together with the connector (10) as a 3D printed part.

7. The intraocular lens (1) as described in any one of claims 1 to 3. in, The connecting element (8, 14) has a connecting portion (10) by means of which the connecting element (8, 14) is directly and permanently connected to the loop (6, 7), wherein the connecting portion (10) has at least two separate straight connecting rods (11a, 11b) that protrude from different points (18, 19) on the inner side (12) of the loop (6, 7) and extend in the direction of the optical part, wherein the connecting rods (11a, 11b) are connected to each other at their ends facing the optical part (2, 24).

8. The intraocular lens (1) as described in claim 7. in, These connecting rods (11a, 11b) are connected to each other in a single piece at their ends facing the optical part (2, 24).

9. The intraocular lens (1) as described in any one of claims 1 to 3. in, The connecting elements (9, 15) of this mating are through holes.

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