Intraocular lens including drug reservoir
By setting radial and axial incisions on the loop of the intraocular lens and using an interference fit to fix the drug reservoir, the problem of drug reservoir detachment during insertion is solved, ensuring that the optical body of the intraocular lens remains in the correct position in the eye and reducing the risk of posterior cataract.
Patent Information
- Application Number
- CN202390000360.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2022-05-20
- Filing Date
- 2023-05-12
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2033-05-12
AI Technical Summary
In the prior art, the drug reservoir is prone to detaching from the loop during the insertion of the intraocular lens, causing the optical body of the intraocular lens to become off-center, which may affect the normal function of the eye and increase the risk of secondary cataracts.
Design an intraocular lens with radial and axial slits on its loop arm. The drug reservoir is securely attached through these slits to ensure it does not detach during insertion and is further secured by an interference fit to prevent the drug reservoir from protruding and reduce the possibility of optical body misalignment.
It effectively prevents the drug reservoir from detaching from the loop arm, ensures that the intraocular lens remains in the correct position in the eye, reduces negative impacts on the eye structure, and lowers the risk of posterior cataracts.
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Figure CN223653992U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present invention relates to an intraocular lens. BACKGROUND
[0002] When treating a cataract of an eye, the natural lens is replaced by an artificial intraocular lens. For this purpose, usually only a small incision is made in the cornea of the eye, which is large enough to allow the tip of an injector to be inserted into the eye through the incision. After the incision has been made in the cornea, the natural lens of the eye is usually broken up by phacoemulsification and then suctioned out of the capsular bag of the eye. Thereafter, the intraocular lens is inserted into the eye by means of the injector.
[0003] After the cataract has been treated, usually a drug, such as an antibiotic and / or an anti-inflammatory agent, is introduced into the eye. For example, a drug reservoir can be attached to the intraocular lens, which is inserted into the eye together with the intraocular lens. If the intraocular lens is inserted into the eye by means of an injector, the drug reservoir should not be detached from the intraocular lens. Furthermore, the drug reservoir should not be so bulky that the drug reservoir causes a decentered arrangement of the optical body of the intraocular lens in the eye or that structures for preventing a postoperative cataract are negatively affected. US 2022 / 0 104 936 A1 discloses an ophthalmic implant comprising an intraocular lens and a haptic, and a drug delivery device attached to the haptic. US 2020 / 0 405 538 A1 discloses an ophthalmic device which can have an active or diagnostic agent. SUMMARY
[0004] It is therefore an object of the present invention to provide an intraocular lens which can receive a drug reservoir, wherein the drug reservoir, when received by the intraocular lens, is not detached from the intraocular lens and does not cause a decentration of the optical body of the intraocular lens in the eye.
[0005] The intraocular lens according to the present invention comprises an optical body having an optical axis and a haptic arm attached to the optical body, wherein the haptic arm has a radial cut-out formed in a side of the haptic arm which is arranged outward in a radial direction with respect to the optical axis. By means of the radial cut-out, the intraocular lens is configured to receive a drug reservoir. When the drug reservoir is arranged in the radial cut-out, the drug reservoir is particularly firmly arranged on the haptic arm. Thus, the possibility of the drug reservoir being detached from the haptic arm is extremely low, especially if the intraocular lens is injected into the capsular bag of the eye via the tip of an injector. Since the radial cut-out is formed in the side of the haptic arm which is outward in the radial direction, the drug reservoir does not protrude outward from the haptic arm in a radial orientation or only slightly. Since the side of the haptic arm which is outward in the radial direction contacts the capsular bag, a decentration of the optical body of the intraocular lens in the eye caused by the drug reservoir and structures for preventing a postoperative cataract can be reduced or even avoided, which are not negatively affected.
[0006] It is preferred that the intraocular lens has a drug reservoir, which has a drug and a through-hole, in which the haptic arm is arranged, and which is arranged in the radial cut. It is particularly preferred that the drug reservoir is recessed in the radial cut. This means that the drug reservoir does not protrude outward from the haptic arm in the radial direction, as a result of which an eccentricity of the optical body can be avoided particularly reliably.
[0007] The drug reservoir preferably has a first end face and a second end face, which is arranged to face away from the first end face, wherein the through-hole is limited by the first end face and the second end face and has a first longitudinal end in the region of the first end face and a second longitudinal end in the region of the second end face, wherein the drug reservoir has a displacement direction, which points from the first longitudinal end to the second longitudinal end. In order to introduce the drug reservoir into the radial cut, the haptic arm can have a longitudinal end, which is arranged to face away from the optical body and can be introduced into the through-hole. Subsequently, by displacing the drug reservoir in the displacement direction, the drug reservoir can be displaced until the drug reservoir enters the radial cut. It is conceivable that the displacement direction is arranged parallel to the normal of the first end face and / or parallel to the normal of the second end face. The displacement direction is preferably located in a plane, the normal of which is arranged parallel to the optical axis. Alternatively, the displacement direction is preferably arranged parallel to the optical axis.
[0008] It is preferred that the haptic arm has a first axial cut, which is formed in a first side of the haptic arm, which side is arranged outward in the axial direction with respect to the optical axis. It is particularly preferred that the drug reservoir is arranged in the first axial cut. Thus, the drug reservoir can be arranged more firmly on the haptic arm and the protrusion of the drug reservoir from the haptic arm can be reduced even further, as a result of which the possibility of the drug reservoir detaching from the haptic arm during the injection of the intraocular lens can be reduced even further. It is preferred that the first axial cut directly adjoins the radial cut.
[0009] The drug reservoir preferably has a first drug reservoir cut, which communicates with the through-hole, and a first connecting plate, which limits the first drug reservoir cut, wherein the first connecting plate is arranged in the first axial cut and the haptic arm is arranged in the first drug reservoir cut. In particular, the first connecting plate can be recessed in the first axial cut. Thus, the first connecting plate advantageously does not protrude from the haptic arm in the axial direction.
[0010] It is preferred that the haptic arm has a second axial cutout which is arranged offset to the first axial cutout in a circumferential direction with respect to the optical axis and which is formed in a second side of the haptic arm which is arranged outwardly opposite to the axial direction and which is arranged to face away from the first side. It is particularly preferred that the drug reservoir is arranged in the second axial cutout. Thus, the drug reservoir can be arranged more firmly on the haptic arm and the protrusion of the drug reservoir from the haptic arm can be reduced even further, as a result of which the possibility of the drug reservoir detaching from the haptic arm during the injection of the intraocular lens can be reduced even further. It is preferred that the second axial cutout directly adjoins the radial cutout.
[0011] The drug reservoir preferably has a second drug reservoir cutout which communicates with the through-hole and a second connecting plate which limits the second drug reservoir cutout, wherein the second connecting plate is arranged in the second axial cutout and the haptic arm is arranged in the second drug reservoir cutout. In particular, the second connecting plate can be recessed into the second axial cutout. Thus, the second connecting plate advantageously does not protrude from the haptic arm opposite to the axial direction.
[0012] It is preferred that the drug reservoir is arranged flush with the haptic arm, viewed in the radial direction. Thus, detachment of the drug reservoir from the haptic arm during the injection of the intraocular lens can be avoided particularly reliably. If the intraocular lens is folded prior to the injection of the intraocular lens, it is also easily possible to transfer the haptic arm onto the optical body and to fold the optical body around the haptic arm.
[0013] It is preferred that the second axial cutout is arranged spaced apart from the first axial cutout in the circumferential direction. Thus, a severe weakening of the haptic arm by the first axial cutout and the second axial cutout can be avoided; a weakening of the haptic arm can lead to the haptic arm tearing, in particular when the haptic arm is inserted into the capsular bag via the tip of the injector.
[0014] According to the application, the haptic arm has a radial protrusion which protrudes inwardly in the radial direction from the remainder of the haptic arm and which is arranged in the same region as the radial cutout in the circumferential direction with respect to the optical axis. This can prevent a severe weakening of the haptic arm.
[0015] It is preferred that the haptic arm has a tensile strength of at least 0.25 N in the region of the radial cutout.
[0016] It is preferred that the haptic arm has a curved design. The haptic arm particularly preferably has a C-shaped or J-shaped design.
[0017] It is preferred that the haptic arm has a further radial cut-out which is formed in the side of the haptic arm which is arranged outward in the radial direction. Furthermore, the haptic arm can have a third axial cut-out which is formed in the first side of the haptic arm. In addition, it is conceivable that the haptic arm has a fourth axial cut-out which is formed in the second side of the haptic arm. It is particularly preferred that the intraocular lens has a further drug reservoir which has a drug and a through-hole through which the haptic arm extends. The further drug reservoir can be arranged in the further radial cut-out, in particular in the third axial cut-out and in the fourth axial cut-out.
[0018] It is preferred that the intraocular lens has a further haptic arm which is attached to the optical body, wherein the further haptic arm has a radial cut-out which is formed in the side of the haptic arm which is arranged outward in a further radial direction with respect to the optical axis. In particular, the further haptic arm can be designed to have point symmetry with respect to the haptic arm. It is particularly preferred that the intraocular lens has a further drug reservoir which has a drug and a through-hole through which the further haptic arm extends. Furthermore, the further drug reservoir is arranged in the radial cut-out of the further haptic arm.
[0019] The drug reservoir is preferably attached to the haptic arm by means of an interference fit. As a result, the drug reservoir is arranged particularly firmly on the haptic arm.
[0020] It is preferred that the drug reservoir is designed to continuously dispense the drug. In particular, the drug reservoir can be designed to be biodegradable. To this end, the drug reservoir can have a matrix into which the drug can be introduced, the matrix having a copolymer formed from a first monomer and a second monomer. The first monomer can be caprolactone and the second monomer can be selected from the group of lactide, glycolide and / or trimethylene carbonate. An example of a matrix into which the drug can be introduced and which is not biodegradable is polymeric hydroxyethyl methacrylate.
[0021] The drug can comprise, for example, an antibiotic such as moxifloxacin, and / or a steroidal anti-inflammatory agent such as dexamethasone, and / or a non-steroidal anti-inflammatory agent such as a non-steroidal anti-rheumatic agent, for example diclofenac. For example, the drug can additionally or alternatively have a diagnostic substance such as a contrast agent.
[0022] The drug reservoir can for example have a single material which has a matrix into which the drug is introduced, or which consists of a matrix into which the drug is introduced.
[0023] The drug reservoir preferably has a first material having a matrix into which the drug is incorporated and a second material which is different from the first material and forms the first connecting plate, in particular the second connecting plate. The second material is preferably non-biodegradable. For this purpose, the second material can be selected from the group of polymethyl methacrylate, polymerized hydroxyethyl methacrylate, polypropylene, silicone, acrylate copolymers. BRIEF DESCRIPTION OF DRAWINGS
[0024] The application is explained in greater detail below with reference to the schematic drawings, in which:
[0025] Figure 1 A plan view of a first intraocular lens according to the application is shown arranged in a capsular bag,
[0026] Figure 2 A perspective view of a first drug reservoir is shown,
[0027] Figure 3 A perspective view of a second drug reservoir is shown,
[0028] Figure 4 A perspective view of a third drug reservoir is shown,
[0029] Figure 5 A side view of a second intraocular lens according to the application is shown,
[0030] Figure 6 A haptic arm and a drug reservoir are shown, the drug reservoir being arranged spaced apart from the haptic arm,
[0031] Figure 7 A haptic arm and a drug reservoir of Figure 6 are shown, wherein the drug reservoir is moved onto the haptic arm, and
[0032] Figure 8 A haptic arm and a drug reservoir of Figure 6 and Figure 7 are shown, the haptic arm and the drug reservoir being arranged in a capsular bag, wherein the first connecting plate of the haptic arm is arranged in the first axial cutout of the haptic arm and the second connecting plate of the haptic arm is arranged in the second axial cutout of the haptic arm. DETAILED DESCRIPTION
[0033] As can be seen from Figure 1 and Figure 5As can be seen, the intraocular lens 1 has an optical body 2 with an optical axis 11 and a haptic arm 3 attached to the optical body 2. The haptic arm 3 has a radial cutout 6 configured to receive a drug reservoir 4 and formed in a side of the haptic arm 3 which is arranged outward in a radial direction 13 with respect to the optical axis 11. The intraocular lens 1 can have a drug reservoir 4 with a drug and arranged in the radial cutout 6. The drug reservoir 4 has a through-hole 8 through which the haptic arm 3 extends. The drug reservoir 4 can be attached to the haptic arm 3, for example, by a force fit, in particular by an interference fit. For example, the haptic arm 3 can have a curved design, in particular a C-shaped (see Fig. 1) or J-shaped design. Figure 1 )or a J-shaped design.
[0034] Figures 1 to 8 It is shown that the drug reservoir 4 can have a first end face 31 and a second end face 32 arranged facing away from the first end face 31, wherein the through-hole 8 is limited by the first end face 31 and the second end face 32. The through-hole 8 has a first longitudinal end 34 in the area of the first end face 31 and a second longitudinal end 35 in the area of the second end face 32, wherein the drug reservoir 4 has a displacement direction 15 pointing from the first longitudinal end 34 to the second longitudinal end 35. The displacement direction 15 can be oriented as the direction in which the drug reservoir 4 is to be displaced in order to move the drug reservoir 4 into the radial cutout 6. It is conceivable that the displacement direction 15 is arranged parallel to a normal of the first end face 31 and / or parallel to a normal of the second end face 32. The first end face 31 can form a longitudinal end of the drug reservoir 4 in the displacement direction 15 and the second end face 32 can form a longitudinal end of the drug reservoir 4 in a direction oppositely oriented to the displacement direction 15. Furthermore, the drug reservoir 4 can have a circumferential surface 33 on its outside arranged between the first end face 31 and the second end face 32, in particular can directly adjoin the first end face 31 and the second end face 32.
[0035] Figure 6 It is shown that the radial cutout 6 can be limited by a first side face 41 limiting a displacement of the drug reservoir 4 opposite to the radial direction 13, i.e. towards the optical axis 11. Furthermore, the radial cutout 6 can be limited by a second side face 42 limiting a displacement of the drug reservoir 4 in a circumferential direction 14 with respect to the optical axis 11. In addition, the radial cutout 6 can be limited by a third side face 43 limiting a displacement of the drug reservoir 4 in a direction oppositely oriented to the circumferential direction 14.
[0036] Figure 2A first embodiment of the drug reservoir 4 is shown, wherein the entire circumference of the through-hole 8 is limited by the material of the drug reservoir 4 at least at one point along the displacement direction 15. It is also conceivable that the entire circumference of the through-hole 8 is limited by the material of the drug reservoir 4 at every point along the displacement direction 15. Furthermore, Figure 2 It is shown that the through-hole 8 can have a circular shape in a cross-sectional plane whose normal is parallel to the displacement direction 15. However, other shapes are also conceivable, such as an elliptical shape, a rectangular shape or a square shape. In addition, Figure 2 It is shown that the circumferential surface 33 in the cross-sectional plane can have a circular shape. However, other shapes are also conceivable, such as an elliptical shape, a rectangular shape or a square shape. In the first embodiment of the drug reservoir 4 (in contrast to Figure 2 the second embodiment of the drug reservoir 4), it is conceivable that, when the drug reservoir 4 is arranged in the radial cutout 6, the displacement direction 15 lies in a plane whose normal is arranged parallel to the optical axis 11 (in contrast to Figure 1 the second embodiment of the drug reservoir 4). In the first embodiment of the drug reservoir 4, it is also conceivable that the loop arm 3 extends from a first longitudinal end 34 to a second longitudinal end 35.
[0037] Figures 6 to 8 It is shown that the loop arm 3 can have a first axial cutout 7a, in which the drug reservoir 4 is arranged, and which is formed in a first side of the loop arm 3, which is arranged outward in the axial direction 12 relative to the optical axis 11. In this case, the drug reservoir 4 can have a first drug reservoir cutout 23 (in contrast to Figure 3 the second embodiment of the drug reservoir 4 and Figure 4 the third embodiment of the drug reservoir 4), which is in communication with the through-hole 8, and which can have a first connecting plate 25, which limits the first drug reservoir cutout 23, wherein the first connecting plate 25 is arranged in the first axial cutout 7a and the loop arm 3 is arranged in the first drug reservoir cutout 23. The first connecting plate 25 can form a part of the first end face 31 and the second end face 32 can not be formed in the area of the first drug reservoir cutout 23 in order to allow the loop arm 3 to be inserted into the first drug reservoir cutout 23 in the displacement direction 15.
[0038] From Figures 6 to 8 It will also be seen that the loop arm 3 can have a second axial cutout 7b, in which the drug reservoir 4 is arranged, and which is arranged offset to the first axial cutout 7a in the circumferential direction 14 relative to the optical axis 11 and is formed in a second side of the loop arm 3, which is arranged outward opposite to the axial direction 12 and is arranged to face away from the first side. In this case, the drug reservoir 4 can have a second drug reservoir cutout 24 (in contrast to Figure 3 the second embodiment of the drug reservoir 4 and Figure 4In contrast to the third embodiment of the drug reservoir 4), the second drug reservoir cutout communicates with the through-hole 8; and a second connecting plate 26, which limits the second drug reservoir cutout 24, wherein the second connecting plate 26 is arranged in the second axial cutout 7b and the haptic arm 3 is arranged in the second drug reservoir cutout 24. The second connecting plate 26 can form a part of the second end face 32 and the first end face 31 can not be formed in the area of the second drug reservoir cutout 24 in order to allow the insertion of the haptic arm 3 into the second drug reservoir cutout 24 opposite the displacement direction 15.
[0039] The first axial cutout 7a can directly adjoin the radial cutout 6 and / or the second axial cutout 7b can directly adjoin the radial cutout 6 (in contrast to the third embodiment of the drug reservoir 4). Figures 6 to 8 The second axial cutout 7b can be arranged spaced apart from the first axial cutout 7a in the circumferential direction 14. Figure 1 And Figures 6 to 8 It is shown that the intraocular lens 1 can have a radial protrusion 10, which protrudes inward from the rest of the haptic arm 3 in the radial direction 13 and which is arranged in the same area as the radial cutout 6 in the circumferential direction 14 relative to the optical axis 11.
[0040] The first connecting plate 25 can be recessed into the first axial cutout 7a, so that the drug reservoir 4 (seen in the radial direction 13) can be arranged in the area of the first side flush with the haptic arm 3 (in contrast to the third embodiment of the drug reservoir 4). Figure 5 The second connecting plate 26 can be recessed into the second axial cutout 7b, so that the drug reservoir 4 (seen in the radial direction 13) can be arranged in the area of the second side flush with the haptic arm 3 (in contrast to the third embodiment of the drug reservoir 4). Figure 5 The second connecting plate 26 can be recessed into the second axial cutout 7b, so that the drug reservoir 4 (seen in the radial direction 13) can be arranged in the area of the second side flush with the haptic arm 3 (in contrast to the third embodiment of the drug reservoir 4).
[0041] It is conceivable that for the second embodiment of the drug reservoir 4 and the third embodiment of the drug reservoir 4, the displacement direction 15 is arranged parallel to the optical axis 11 (see Figure 8 ].
[0042] Figures 6 to 8 It is shown how the drug reservoir 4 can be introduced into the radial cutout 6. First, the drug reservoir 4 is arranged spaced apart from the haptic arm 3. Subsequently, the longitudinal end 9 of the haptic arm 3, which end is arranged facing away from the optical body 2, can first be arranged in the through-hole 8. By displacement of the drug reservoir 4 in the displacement direction 15, the drug reservoir 4 can be displaced until the drug reservoir 4 reaches the radial cutout 6 (in contrast to the third embodiment of the drug reservoir 4). In the first embodiment of the drug reservoir 4, the displacement is completed here and, for example, the Figure 7 Figure 1 The shown arrangement. In the second and third embodiments of the drug reservoir 4, still a pivoting of the drug reservoir 4 is required, such that the first connection plate 25 enters the first axial cutout 7a and the second connection plate 26 enters the second axial cutout 7b (compare Figure 8 ].
[0043] Figure 6 It is shown that the first axial cutout 7a can be limited by a first side face 44, which limits a displacement of the drug reservoir 4 opposite the axial direction 12. Further, the first axial cutout 7a can be limited by a second side face 45, which limits a displacement of the drug reservoir 4 opposite the circumferential direction 14. In addition, the first axial cutout 7a can be limited by a third side face 46, which limits a displacement of the drug reservoir 4 in the circumferential direction 14. Further, Figure 6 It is shown that the second axial cutout 7b can be limited by a first side face 47, which limits a displacement of the drug reservoir 4 in the axial direction 12. Further, the second axial cutout 7b can be limited by a second side face 48, which limits a displacement of the drug reservoir 4 opposite the circumferential direction 14. In addition, the second axial cutout 7b can be limited by a third side face 49, which limits a displacement of the drug reservoir 4 in the circumferential direction 14.
[0044] The first side face 41 of the radial cutout 6 and the first side face 44 of the first axial cutout 7a can for example enclose an angle of 60° to 120°, in particular 80° to 100°, or essentially 90°. The first side face 41 of the radial cutout 6 and the first side face 47 of the second axial cutout 7b can for example enclose an angle of 60° to 120°, in particular 80° to 100°, or essentially 90°.
[0045] The drug reservoir 4 can have only a single material, which has the drug, as in the case of the second embodiment of the drug reservoir 4 according to Figure 3 .
[0046] Alternatively, it is conceivable that the drug reservoir 4 has a first material, which has the drug, and a second material, which is different from the first material and forms the first connection plate 25, as in the case of the third embodiment of the drug reservoir 4 according to Figure 4 . For this purpose, the drug reservoir 4 can have a first cover plate 21, which is formed from the second material and forms the first end face 31. It is also conceivable that the second material forms the second connection plate 26. For this purpose, the drug reservoir 4 can have a second cover plate 22, which is formed from the second material and forms the second end face 32. Between the first cover plate 21 and the second cover plate 22, an intermediate portion 20 can be arranged, which is formed from the first material, in particular forms the circumferential surface 33.
[0047] The first cover plate 21 and / or the second cover plate 22 can be porous. This allows for a faster release of the drug.
[0048] The drug reservoir 4 can have a post extending through the first material and connecting the first cover plate 21 and the second cover plate 22 to each other. For example, the post can have and / or consist of the second material. It is also conceivable to provide a plurality of posts.
[0049] Figure 1 and Figure 8 It is shown that the drug reservoir 4 can be recessed into the radial incision 6. This has the effect that the drug reservoir 4 does not push the capsular bag 5 outward, i.e. away from the optical body 2, when the intraocular lens 1 is inserted into the capsular bag 5 of the eye (as opposed to the prior art). Figure 1 and Figure 8 Comparison).
[0050] List of reference signs
[0051] 1 intraocular lens
[0052] 2 optical body
[0053] 3 haptic arm
[0054] 4 drug reservoir
[0055] 5 capsular bag
[0056] 6 radial incision
[0057] 7a first axial incision
[0058] 7b second axial incision
[0059] 8 through hole
[0060] 9 longitudinal end
[0061] 10 radial protrusion
[0062] 11 optical axis
[0063] 12 axial direction
[0064] 13 radial direction
[0065] 14 circumferential direction
[0066] 15 displacement direction
[0067] 20 intermediate portion
[0068] 21 first cover plate
[0069] 22 second cover plate
[0070] 23 first drug reservoir incision
[0071] 24 second drug reservoir cutout
[0072] 25 first connection plate
[0073] 26 second connection plate
[0074] 31 first end face
[0075] 32 second end face
[0076] 33 circumferential surface
[0077] 34 first longitudinal end
[0078] 35 second longitudinal end
[0079] 41 first side of radial cutout
[0080] 42 second side of radial cutout
[0081] 43 third side of radial cutout
[0082] 44 first side of first axial cutout
[0083] 45 second side of first axial cutout
[0084] 46 third side of first axial cutout
[0085] 47 first side of second axial cutout
[0086] 48 second side of second axial cutout
[0087] 49 third side of third axial cutout
Claims
1. An intraocular lens, comprising an optical body (2) having an optical axis (11) and a haptic arm (3) attached to the optical body (2), wherein, The haptic arm (3) has a radial cutout (6) formed in a side of the haptic arm (3) which is arranged outward in a radial direction (13) with respect to the optical axis (11), wherein the haptic arm (3) has a radial protrusion (10) which protrudes inward from the rest of the haptic arm (3) in the radial direction (13) and which is arranged in the same region as the radial cutout (6) in a circumferential direction (14) with respect to the optical axis (11).
2. The intraocular lens of claim 1, wherein, The intraocular lens (1) has a drug reservoir (4) which has a drug and a through-hole (8) in which the haptic arm (3) is arranged, and which is arranged in the radial cutout (6).
3. The intraocular lens of claim 2, wherein, The drug reservoir (4) is recessed into the radial cutout (6).
4. The intraocular lens of any of claims 1 to 3, wherein, The haptic arm (3) has a first axial cutout (7a) which is formed in a first side of the haptic arm (3) which is arranged outward in an axial direction (12) with respect to the optical axis (11), in particular wherein the drug reservoir (4) is arranged in the first axial cutout (7a).
5. The intraocular lens of claim 4, wherein, The first axial cutout (7a) directly adjoins the radial cutout (6).
6. The intraocular lens of claim 4, wherein, The haptic arm (3) has a second axial cutout (7b) which is arranged offset from the first axial cutout (7a) in a circumferential direction (14) with respect to the optical axis (11) and which is formed in a second side of the haptic arm (3) which is arranged outward opposite the axial direction (12) and is arranged to face away from the first side, in particular wherein The drug reservoir (4) is arranged in the second axial cutout (7b).
7. The intraocular lens of claim 5, wherein, The haptic arm (3) has a second axial cutout (7b) which is arranged offset from the first axial cutout (7a) in a circumferential direction (14) with respect to the optical axis (11) and which is formed in a second side of the haptic arm (3) which is arranged outward opposite the axial direction (12) and is arranged to face away from the first side, in particular wherein The drug reservoir (4) is arranged in the second axial cutout (7b).
8. The intraocular lens of claim 6, wherein, The second axial cutout (7b) directly adjoins the radial cutout (6).
9. The intraocular lens of claim 6, wherein, The second axial cutout (7b) is arranged spaced apart from the first axial cutout (7a) in the circumferential direction (14).
10. The intraocular lens of claim 8, wherein, The second axial cutout (7b) is arranged spaced apart from the first axial cutout (7a) in the circumferential direction (14).
11. The intraocular lens of any of claims 1 to 3, wherein, The haptic arm (3) has a curved design, in particular a C-shaped or J-shaped design.
Citation Information
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