Intraocular lens holder and use thereof

Abstract

The purpose of the present invention is to enable accurate setting of an intraocular lens into an injector, and to enable accurate discharge of the intraocular lens by means of the injector. An intraocular lens holder (10) comprises a restriction member (2) that restricts movement of an intraocular lens (7) in a storage state in which the intraocular lens (7) is stored, and releases the restriction on the movement of the intraocular lens (7) through attachment to a distal-end chip (30).

Description

Holder for intraocular lens and use thereof

[0001] The present invention relates to a holder for an intraocular lens and its use.

[0002] An intraocular lens (hereinafter sometimes simply referred to as an intraocular lens) is inserted into the place of the crystalline lens (aphakic eye) to compensate for the refractive power of the crystalline lens removed during cataract surgery. An intraocular lens injector is used as an insertion system for inserting an intraocular lens into the eye. The injector is configured to push out and eject the intraocular lens held in a lens holder using a plunger.

[0003] Some conventional intraocular lens injectors require the user to set the intraocular lens itself into the injector before use. This type of injector has the problem of complicated setup of the intraocular lens. In addition to this problem, many users remove the intraocular lens from the storage container and set it into the injector themselves, which can lead to problems such as damage to the intraocular lens or abnormal behavior of the intraocular lens due to incorrect setup.

[0004] As an intraocular lens insertion system that solves the above problems, for example, Patent Document 1 discloses a system using a semi-preset type injector (hereinafter, sometimes simply referred to as a semi-preset type system). In a semi-preset type injector, a holder that holds the intraocular lens constitutes part of the injector body. Therefore, in a semi-preset type system, setting of the intraocular lens is completed simply by removing the holder containing the intraocular lens from a storage container and inserting the holder into a predetermined position in the injector.

[0005] Japanese Patent Application Laid-Open No. 2001-104363

[0006] However, depending on the type and shape of the intraocular lens, the intraocular lens may move within the holder when the holder containing the intraocular lens is transported, etc., and the intraocular lens may not stay in the correct position within the holder. For this reason, in a system using a semi-preset type injector such as that disclosed in Patent Document 1, when the holder containing the intraocular lens is set in the injector and the intraocular lens is released, the intraocular lens is not in the correct position relative to the plunger, so the plunger cannot properly capture and push out the intraocular lens at the correct position, and the intraocular lens cannot be released accurately.

[0007] An object of one aspect of the present invention is to provide a holder for an intraocular lens that allows accurate setting of the intraocular lens on an injector and accurate release of the intraocular lens by the injector, and to provide use of the same.

[0008] In order to solve the above problems, one aspect of the present invention provides an intraocular lens holder that is attached to the device body of an injector and forms part of an extrusion mechanism that extrudes an intraocular lens into the eye, and is an intraocular lens holder for storing an intraocular lens, and is equipped with a restricting member that restricts the movement of the intraocular lens in a storage state in which the intraocular lens is stored (hereinafter sometimes simply referred to as the storage state), and that releases the restriction on the movement of the intraocular lens when attached to the device body.

[0009] In order to solve the above-mentioned problems, another aspect of the present invention provides an intraocular lens holder that is attached to an injector device body and constitutes a part of a pushing mechanism that pushes an intraocular lens into the eye, and that stores an intraocular lens, the holder comprising: a mounting member having a mounting surface on which the intraocular lens is placed; a pressing member that covers the mounting member and restricts movement of the intraocular lens in the thickness direction; a restricting member that restricts movement of the intraocular lens in a storage state in which the intraocular lens is stored, but is released from the restriction on movement of the intraocular lens when the intraocular lens is attached to the device body; and a lid member that covers the restricting member, and that includes the following (1) to (3): (1) The regulating member has a base portion extending in the extrusion direction of the intraocular lens, a front regulating portion extending perpendicular to the base portion in the stored state and regulating movement of the intraocular lens in the extrusion direction, a contact portion extending perpendicular to the base portion in the stored state and abutting against the device body in an attached state in which the device body is attached to the device body, and a bending portion having a first thin portion thinner than the base portion, bending in the thickness direction of the intraocular lens as the abutting portion abuts against the device body and pushing up the front regulating portion in the thickness direction, the abutting portion being formed thicker than the bending portion, and in the attached state, the bending portion pushing up the front regulating portion releases the restriction on movement of the intraocular lens in the extrusion direction, (2) The lid member has a lid body formed in a U-shape so as to secure space for the regulating member to bend via the bending portion, and the lid body has a convex portion that abuts against the regulating member, and the abutment between the convex portion and the regulating member forms a fixed end for the bending movement of the regulating member; (3) The regulating member is arranged between the pressing member and the lid member, and the placement member, the pressing member, the regulating member, and the lid member are integrally formed and connected to each other via a hinge portion, and are an assembly in which the placement member, the pressing member, the regulating member, and the lid member are folded via the hinge portion.

[0010] In order to solve the above problem, an intraocular lens insertion system according to yet another aspect of the present invention comprises an injector device body, an intraocular lens holder for storing the intraocular lens in a pre-use state in which no stress is applied, and an intraocular lens stored in the holder, wherein the injector is an intraocular lens insertion system having an extrusion mechanism for extruding the intraocular lens into the eye, and the holder is attached to the device body and forms part of the extrusion mechanism, and comprises a restricting member that restricts the movement of the intraocular lens in a storage state in which the intraocular lens is stored, while the restriction on the movement of the intraocular lens is released when attached to the device body.

[0011] These aspects of the present invention allow for precise placement of the intraocular lens in the injector, allowing for precise release of the intraocular lens by the injector.

[0012] 5 is a perspective view showing the overall configuration of an intraocular lens holder according to a first embodiment of the present invention in a stored state. FIG. 6 is a cross-sectional view perpendicular to the width direction (WD direction) showing the overall configuration of an intraocular lens holder according to a first embodiment of the present invention in a stored state. FIG. 7 is a cross-sectional view perpendicular to the length direction (LD direction) showing the overall configuration of an intraocular lens holder according to a first embodiment of the present invention in a stored state. FIG. 8 is a top view showing a state in which an intraocular lens is placed on a mounting member in the intraocular lens holder according to the first embodiment of the present invention. FIG. 9 is a perspective view showing the overall configuration of an instrument body of an injector to which the intraocular lens holder according to the first embodiment of the present invention is attached. FIG. 10 is a perspective view showing the overall configuration of an injector in which the intraocular lens holder according to the first embodiment of the present invention is attached to the instrument body shown in FIG. 5. FIG. 11 is a perspective view for explaining the operation of a regulating member in a stored state and the operation of the regulating member in a mounted state in the intraocular lens holder according to the first embodiment of the present invention. FIG. 12 is a cross-sectional view showing the configuration of a fixed end of the intraocular lens holder according to the first embodiment of the present invention. 13 is a perspective view showing an unfolded state before assembly of an intraocular lens holder according to embodiment 1 of the present invention, with the HDb side surface 3R of the pressing member 3 facing upward. FIG. 14 is a perspective view showing an unfolded state before assembly of an intraocular lens holder according to embodiment 1 of the present invention, with the HDa side surface 3S of the pressing member 3 facing upward. FIG. 15 is a perspective view showing a state during assembly of a holder set for storing an intraocular lens according to embodiment 1 of the present invention. FIG. 16 is a perspective view showing the configuration of an intraocular lens storage set according to embodiment 1 of the present invention. FIG. 17 is a perspective view showing the configuration of a storage container provided in the intraocular lens storage set shown in FIG. 12. FIG. 18 is a perspective view showing a state during assembly of a holder set for storing an intraocular lens according to embodiment 2 of the present invention.

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in the drawings, the axial direction of the plunger 40 of the injector 100 is referred to as the LD direction (lengthwise direction). In the LD direction, one side (front side) is referred to as the LDa side, and the other side (rear side) is referred to as the LDb side. The direction from the LDb side to the LDa side is the extrusion direction of the intraocular lens. Furthermore, the thickness direction of the intraocular lens placed in the holder 10 is referred to as the HD direction (height direction). In the HD direction, one side is referred to as the HDa side (upper side), and the other side is referred to as the HDb side (lower side). When the intraocular lens placed on the mounting member of the holder 10 is used as a reference, the mounting surface side of the intraocular lens is the HDb side, and the opposite side is the HDa side. Furthermore, the direction perpendicular to both the LD direction and the HD direction is referred to as the WD direction (horizontal direction, width direction).

[0014] [First Embodiment] Hereinafter, a first embodiment of the present invention will be described in detail.

[0015] (Holder for Intraocular Lens and Holder Set for Storing Intraocular Lenses) The holder according to this embodiment is attached to the injector device body and functions as part of the extrusion mechanism for the intraocular lens. At the same time, the holder according to this embodiment also functions to store the intraocular lens. Note that before the holder is attached to the device body of the intraocular lens injector described below (hereinafter, sometimes simply referred to as the "pre-use state"), no active (intentional) external force is applied to the intraocular lens from the holder. Therefore, no stress is generated in response to the external force, and no deformation occurs due to the external force or the stress. Here, the external force refers to a force generated, for example, by active (intentional) contact or interference between various components in the holder and the intraocular lens, and the stress refers to stress inside the intraocular lens in response to the external force. If such external force or stress is applied to the intraocular lens, the intraocular lens may be deformed.

[0016] First, the configuration of the holder according to this embodiment in a storage state in which an intraocular lens is stored will be described.

[0017] Fig. 1 is a perspective view showing the overall configuration of an intraocular lens holder 10 according to this embodiment in a stored state. Fig. 2 is a cross-sectional view perpendicular to the WD direction showing the overall configuration of an intraocular lens holder 10 according to this embodiment in a stored state. Fig. 3 is a cross-sectional view perpendicular to the LD direction showing the overall configuration of an intraocular lens holder 10 according to this embodiment in a stored state. Fig. 4 is a top view showing a state when an intraocular lens 7 is placed on a mounting member 4.

[0018] As shown in Figures 1 to 3, an intraocular lens holder 10 according to this embodiment includes a cover member 1, a restricting member 2, a pressing member 3, and a mounting member 4. The cover member 1, the restricting member 2, the pressing member 3, and the mounting member 4 are connected via a hinge portion, which will be described later. In the holder 10, the mounting member 4, the pressing member 3, the restricting member 2, and the cover member 1 are provided in this order from the HDb side to the HDa side. Note that the holder 10 is not necessarily limited to a configuration in which these members are all connected via a hinge portion, and may include a configuration in which these members are arranged individually, or a configuration in which a plurality of these members are combined.

[0019] 4, the mounting member 4 is formed with a mounting surface 4a on which the intraocular lens 7 is placed. The holder 10 is attached to the injector device body from the HDb side end face of the mounting member 4. When the holder 10 is attached to the injector device body, most of the portion of the mounting member 4 from the HDb side end face to the HDa side is housed in the device body.

[0020] Here, the intraocular lens 7 includes a lens portion 7a, a front support portion 7b, and a rear support portion 7c. The lens portion 7a is a lens portion that functions as a crystalline lens after insertion into the eye. The front support portion 7b and the rear support portion 7c are formed to extend in a curved shape from the side surface of the lens portion 7a and function to support the lens portion 7a within the eye after insertion into the eye. The front support portion 7b and the rear support portion 7c are arranged in a point-symmetrical positional relationship with the center of the lens portion 7a as the center of symmetry. The lens portion 7a, the front support portion 7b, and the rear support portion 7c are made of an elastic material and are formed to be deformable. In this embodiment, a single-piece type in which the lens portion 7a, the front support portion 7b, and the rear support portion 7c are integrally molded will be described as an example. Note that the intraocular lens 7 is not necessarily limited to a single-piece type as long as it includes the lens portion 7a, the front support portion 7b, and the rear support portion 7c, and may also be a multi-piece type or a flat type.

[0021] The mounting member 4 has a passage portion 4e formed in the center portion in the WD direction and extending in the LD direction. When the holder 10 is attached to the injector device body, the passage portion 4e constitutes a passage through which the intraocular lens 7 pushed toward the LDa side passes. The mounting surface 4a is formed as the bottom surface (bottom surface on the HDb side) of the passage portion 4e. The mounting member 4 also has a lens rearward restricting portion 4b, a lens upper restricting portion 4c, and a plunger position restricting portion 4d. The lens rearward restricting portion 4b has the function of restricting movement of the intraocular lens 7 placed on the mounting surface 4a toward the LDb side, and has a curved shape that follows the shape of the rear support portion 7c. The lens upper restricting portion 4c is provided to protrude from one of the two side walls of the passage portion 4e. The lens upper restricting portion 4c has the function of restricting movement of the lens portion 7a of the intraocular lens 7 toward the HDa side. The plunger position restricting portion 4d is provided at the end of the mounting member 4 on the LDb side, and has a clamping portion that clamps the tip of the plunger. The plunger position restricting portion 4d restricts the relative position of the plunger with respect to the intraocular lens 7.

[0022] The retaining member 3 covers the mounting member 4 and, together with the mounting member 4, restricts movement of the intraocular lens 7 in the thickness direction (HD direction). More specifically, the retaining member 3 is a member with a rectangular plate-like appearance, and is provided on the mounting member 4 so as to close the passage portion 4e. The retaining member 3 has the function of restricting movement in the thickness direction of the intraocular lens 7 placed on the mounting surface 4a. The HDb side surface of the retaining member 3 is provided with lens retaining portions 3a and 3b that protrude toward the mounting surface 4a. The lens retaining portions 3a and 3b have the function of restricting movement of the intraocular lens 7 toward the HDa side.

[0023] The retaining member 3 restricts the movement of the intraocular lens 7 in the thickness direction within a specific range, so that the intraocular lens 7 is always placed on the placement surface 4 a. As a result, the problems of the plunger riding on the intraocular lens 7 and the plunger passing through the intraocular lens 7 are avoided.

[0024] Furthermore, the problem of the injected viscoelastic substance getting under the intraocular lens 7 and causing the intraocular lens 7 to float up, preventing the plunger from properly pushing out the intraocular lens 7, can be prevented.

[0025] The intraocular lens 7 is a thin intraocular lens or a thick intraocular lens that is formed thicker than the thin intraocular lens. Either the thin intraocular lens or the thick intraocular lens is housed in the holder 10. Therefore, even if a space is generated above the thin intraocular lens when the holder 10 holds the thin intraocular lens, the intraocular lens can be stably held.

[0026] The HDa-side surface of the pressing member 3 is provided with a fitting recess 3c that fits into the HDb-side end of the restricting member 2. The fitting recess 3c is formed in the LD direction in the central portion in the WD direction of the pressing member 3. The restricting member 2 is provided on the pressing member 3 and fits into the fitting recess 3c.

[0027] The restricting member 2 has a function of restricting movement of the intraocular lens 7 placed on the mounting surface 4a toward the LDa side. The intraocular lens 7 is stored in the holder 10 while being restricted from movement toward the LDa side by the restricting member 2. The restricting member 2 has a base 2a, a front restricting portion 2b, a bent portion 2c, and an abutting portion 2d. The base 2a extends in the direction from the LDb side toward the LDa side, i.e., the extrusion direction. The base 2a is branched into two at the end on the LDa side, forming a T-shaped plate in appearance. In the LD direction, the two branched ends of the base 2a are located further toward the LDa side than the LDa-side ends of the pressing member 3 and the mounting member 4. The front restricting portion 2b, the bent portion 2c, and the abutting portion 2d are formed on the base 2a.

[0028] The front restricting portion 2b protrudes perpendicularly (downward) from the base portion 2a toward the intraocular lens 7. A through-hole 3d penetrating in the HD direction is formed in the pressing member 3. The front restricting portion 2b passes through the through-hole 3d and abuts against the mounting surface 4a of the mounting member 4. As shown in FIG. 2 , in the stored state, the front restricting portion 2b is located between the front support portion 7b and the lens portion 7a of the intraocular lens 7 placed on the mounting surface 4a. Note that the front restricting portion 2b is not limited to the shape shown in FIG. 2 etc. as long as it has the function of restricting movement of the intraocular lens 7 in the direction from the LDb side to the LDa side (i.e., the extrusion direction). The front restricting portion 2b is not limited to a configuration in which it abuts against the mounting surface 4a of the mounting member 4.

[0029] The bending portion 2c functions to bend the base portion 2a in the HD direction. In the holder 10 shown in FIGS. 1 to 3, the bending portion 2c is formed as a thin-walled portion 2e (first thin-walled portion) that is thinner than the base portion 2a. This thin-walled portion 2e makes it easier for the base portion 2a of the restricting member 2 to bend in the HD direction. Note that the bending portion 2c may have any structure as long as it functions to bend the base portion 2a in the HD direction, and is not limited to the thin-walled portion 2e. For example, the bending portion 2c may have a structure in which the width of the bending portion 2c in the WD direction is narrower than the width of the base portion 2a. More specifically, the thickness of the base portion 2a is preferably 0.15 mm to 10.00 mm, more preferably 0.25 mm to 5.00 mm, and most preferably 0.70 mm to 2.00 mm. Furthermore, in the range in which the thickness of the bent portion 2c is smaller than the thickness of the base portion 2a, the thickness of the bent portion 2c (thin portion 2e (first thin portion)) is preferably 0.1 mm to 3.5 mm, more preferably 0.2 mm to 1.5 mm, and most preferably 0.5 mm. Furthermore, the material such as resin is not particularly limited, but for example, polypropylene, polyethylene, etc. are preferable.

[0030] Furthermore, the abutment portion 2d of the base 2a protrudes from each of the two branched ends on the LDa side toward the HDb side in a direction perpendicular (downward) to the base 2a. In the LD direction, the abutment portion 2d is located closer to the LDa side than the LDa-side ends of the pressing member 3 and the mounting member 4. In the HD direction, the HDb-side end of the abutment portion 2d is located at approximately the same position as the HDb-side end of the mounting member 4. Therefore, the abutment portion 2d protrudes perpendicular to the base 2a toward the injector device body. The function of the restricting member 2 will be described in detail later.

[0031] In the holder 10, the lid member 1 is disposed closest to the HDa side. The lid member 1 is provided on the HDa side relative to the restricting member 2 and the pressing member 3. The lid member 1 includes a lid main body 1a, a viscoelastic material injection portion 1b, and a handle portion 1c. The lid main body 1a is U-shaped to ensure space for the restricting member 2 to bend via the bending portion 2c. More specifically, the lid main body 1a (i) covers the area on the HDa side of the pressing member 3 other than the areas occupied by the lens pressing portion 3b and the fitting recess 3c, and (ii) forms a U-shape in the WD direction to cover the edge area on the HDa side of the restricting member 2 (LDb side). Because the lid main body 1a covers the restricting member 2 while avoiding the area on the LDa side from the bending portion 2c, the lid main body 1a does not prevent the restricting member 2 from bending toward the HDa side. When viewed from the WD direction, the restricting member 2 can be bent between the HDa side and the HDb side with the lid main body 1a as the reference. Note that the shape of the lid main body 1a is not necessarily limited to a U-shape in the WD direction as long as it secures a space that allows the restricting member 2 to bend via the bending portion 2c.

[0032] The handle 1c protrudes in the HD direction from the end of the lid body 1a on the LDb side and extends in an arched shape toward the LDa side. When viewed from the HDa side, the handle 1c is located in the center of the lid body 1a in the WD direction. The shape of the handle 1c is not limited to that shown in FIG. 1, etc., and may be any shape that allows the holder 10 to be gripped by the handle 1c.

[0033] Injection portion 1b is formed at the end of handle portion 1c on the LDa side. Injection portion 1b has a triangular pyramidal cylindrical shape that opens in the HD direction. In holder 10, the viscoelastic material is injected into passage portion 4e of mounting member 4 through injection portion 1b. For this purpose, presser member 3 disposed between cover member 1 and mounting member 4 has a communication hole 3e that communicates injection portion 1b with passage portion 4e. The viscoelastic material injected from injection portion 1b flows into passage portion 4e of mounting member 4 through communication hole 3e. Note that injection portion 1b may have any shape that allows the viscoelastic material to be injected, and is not necessarily limited to a triangular pyramidal cylindrical shape, and may also be a conical cylindrical shape, a quadrangular pyramidal cylindrical shape, or the like.

[0034] The holder set 150 for storing an intraocular lens according to this embodiment includes the holder 10 described above and an intraocular lens 7 stored in the holder 10. In this embodiment, the intraocular lens 7 is stored and distributed in the form of the holder set described above.

[0035] (Instrument Body of Intraocular Lens Injector) Figure 5 is a perspective view showing the overall configuration of the injector instrument body 60 to which the holder 10 is attached. As shown in Figure 5, the instrument body 60 includes a tubular portion 20, a distal tip 30, a plunger 40, and a plunger guide 50. The distal tip 30 is attached to the LDa side of the tubular portion 20. In the instrument body 60, the plunger guide 50 is attached to the attachment portion 34 of the distal tip 30. The holder 10 according to this embodiment is attached to the rectangular portion 33 (holder mounting portion) of the distal tip 30. In the distal tip 30, the holder 10 and the plunger guide 50 are arranged in this order from the LDb side to the LDa side. In this way, the injector according to this embodiment includes the rectangular portion 33 to which the holder 10 described above is attached.

[0036] The tubular portion 20 extends in the LD direction and is cylindrically shaped. The plunger 40 is inserted into the hollow portion of the tubular portion 20 so as to be movable in the LD direction. The tubular portion 20 is formed with a plate-shaped fixing portion 21, multiple annular protrusions 22, and a flange-shaped holding portion 23. The fixing portion 21 protrudes from the LDa-side end face of the tubular portion 20 toward the LDa side. A distal tip 30 is fixed to the fixing portion 21. The annular protrusion 22 is formed on the outer surface of the LDa side of the tubular portion 20 so as to be grippable by a user. The holding portion 23 is formed on the outer peripheral surface of the LDb side of the tubular portion 20. The holding portion 23 provides a place for a user to place their hand on. Although not shown, a through hole is formed in the LDa-side end face of the tubular portion 20 so as to communicate with the interior of the holder 10 attached to the instrument body 60. The plunger 40 passes through the through hole and is inserted into the holder 10. The cylindrical portion 20 is made of impact-resistant resin such as polycarbonate.

[0037] The annular protrusion 22 and the holding portion 23 may have any shape as long as they can perform the required functions. For example, the holding portion 23 may be configured as a protrusion that can be hooked with a finger instead of a flange-shaped one.

[0038] When using the injector, the user places one hand on the holder 23 and pushes in the plunger 40, while holding the annular protrusion 22 with the other hand to release the intraocular lens 7 into the patient's eye. The provision of the annular protrusion 22 makes it easier for the user to grip the injector, improving the operability of the injector.

[0039] The distal tip 30 is a member that releases the intraocular lens 7 and is attached to the fixing portion 21 of the tube portion 20. The distal tip 30 has a release portion 31, a nozzle portion 32, a rectangular portion 33, and an attachment portion 34. The release portion 31 is formed at the end of the distal tip 30 on the LDa side. The intraocular lens 7 is released from the release portion 31. A nozzle portion 32 is connected to the LDb side of the release portion 31. The inner diameter of the nozzle portion 32 gradually decreases toward the LDa side, i.e., the release portion 31 side. A rectangular portion 33 is connected to the LDb side of the nozzle portion 32. The rectangular portion 33 has a rectangular outer periphery that opens in the HD direction. In the instrument main body 60, the distal tip 30 is connected to the tube portion 20 by engaging the rectangular portion 33 with the fixing portion 21. The distal tip 30 and the cylindrical portion 20 may be engaged with each other by any structure, such as a locking claw and a locking hole, etc. The distal tip 30 is made of a chemical-resistant and flexible resin such as polypropylene or polyamide.

[0040] The plunger 40 is a shaft-shaped member that pushes the intraocular lens 7 set in the holder 10 toward the LDa side. The plunger 40 may have any configuration as long as it is capable of pushing out the intraocular lens 7. For example, the plunger 40 may be formed so that its diameter gradually decreases as it moves from the LDb side toward the LDa side.

[0041] The plunger guide 50 is attached to the attachment portion 34 of the distal tip 30. The plunger guide 50 is attached between the nozzle portion 32 and the rectangular portion 33 of the distal tip 30. The plunger guide 50 is a member that guides the distal end of the plunger 40, which has been pushed toward the LDa side by the user's pushing operation and passed through the holder 10, to the discharge portion 31 of the distal tip 30.

[0042] (Intraocular Lens Injector) The intraocular lens injector has a configuration in which a holder 10 is attached to an instrument body 60 shown in Fig. 5. The holder 10 is attached to the rectangular portion 33 of the distal tip 30 in the instrument body 60. Fig. 6 is a perspective view showing the overall configuration of an intraocular lens injector 100 in which the holder 10 according to this embodiment is attached to the instrument body 60 shown in Fig. 5.

[0043] The injector 100 has a pushing mechanism that pushes the intraocular lens 7 into the eye. In the injector 100 shown in FIG. 6 , the plunger 40 is not pushed in by the user and is in its initial position. In the initial position, the plunger 40 passes through the through-hole formed in the end face of the LDa side of the barrel portion 20. The plunger 40 is inserted into the holder 10 in a state in which the relative position of the intraocular lens 7 with respect to the LDa side tip of the plunger 40 is restricted. In the pushing mechanism, when the plunger 40 is pushed from the initial position toward the LDa side, the tip of the plunger 40 first comes into contact with the rear support portion 7 c of the intraocular lens 7. As a result, the rear support portion 7 c is bent toward the lens portion 7 a. Then, as the plunger 40 advances further toward the LDa side, it passes through the passage portion 4 e of the holder 10. The plunger 40 passes through the nozzle portion 32 of the distal tip 30 and reaches the discharge portion 31 while the distal tip on the LDa side is guided to the discharge portion 31 by the plunger guide 50. As the plunger 40 moves in this manner, the intraocular lens 7 is folded into a concave shape at the nozzle portion 32 of the distal tip 30, and then inserted into the eye from the discharge portion 31 in this concavely folded state. In this manner, in the injector 100, the extrusion mechanism for the intraocular lens 7 is composed of the plunger 40, the holder 10, the distal tip 30, and the plunger guide 50. Therefore, the holder 10 according to this embodiment is attached to the instrument body 60 and constitutes a part of the extrusion mechanism that extrudes the intraocular lens 7 into the eye.

[0044] 6, when the holder 10 is attached to the device body 60, the restricting member 2 is bent as the abutting portion 2d abuts against the distal tip 30. This releases the restriction on the movement of the intraocular lens 7 by the restricting member 2.

[0045] (Operation of Restraining Member 2) In the holder 10, the restraining member 2 restricts movement of the intraocular lens 7 in a storage state in which the intraocular lens 7 is stored, but the restriction on movement of the intraocular lens 7 is released when the holder 10 is attached to the instrument body 60. With this configuration, the movement of the intraocular lens 7 within the holder 10 is restricted by the restraining member 2 in the storage state, so that the intraocular lens 7 remains in the correct position within the holder 10 even when the holder 10 is transported in the storage state. This enables accurate setting of the intraocular lens 7 in the injector 100. Furthermore, the restriction on movement of the intraocular lens 7 by the restraining member 2 is released when the holder 10 is attached to the instrument body 60, so that the extrusion operation of the extrusion mechanism of the injector 100 is not hindered. Since the intraocular lens 7 is in the correct position relative to the plunger 40, the plunger 40 can successfully capture and extrude the intraocular lens 7 at the appropriate position, and the intraocular lens 7 can be accurately released by the injector 100. Therefore, by providing the restricting member 2, the holder 10 allows the intraocular lens 7 to be accurately set in the injector 100, and the intraocular lens 7 can be accurately released by the injector 100.

[0046] The operation of the restricting member 2 in a storage state in which the intraocular lens 7 is stored and in an attached state in which the holder 10 is attached to the device body 60 will be described in detail below. Fig. 7 is a perspective view for explaining the operation of the restricting member 2 in a storage state and in an attached state. Note that, in order to explain the operation of the restricting member 2, the cover member 1 and the pressing member 3 of the holder 10 are omitted from Fig. 7.

[0047] 7 , in the stored state, the front restricting portion 2b protrudes from the base portion 2a toward the HDb side and abuts against the mounting surface of the intraocular lens 7. The front restricting portion 2b is located between the front support portion 7b and the lens portion 7a of the intraocular lens 7 mounted on the mounting member 4. Therefore, even if the intraocular lens 7 moves from the correct position toward the LDa side when the holder 10 is transported in the stored state, the movement is limited to the front restricting portion 2b. That is, in the stored state, the front restricting portion 2b restricts movement of the intraocular lens 7 in the direction from the LDb side toward the LDa side (i.e., the extrusion direction).

[0048] 7, the distal tip 30 has a contact area 30d against which the contact portion 2d of the restricting member 2 contacts. When the holder 10 is attached to the distal tip 30, the contact portion 2d of the restricting member 2 contacts the contact area 30d of the distal tip 30 from the HDa side. As the contact portion 2d contacts the contact area 30d, the bending portion 2c (thin portion 2e) bends in the HD direction, i.e., toward the HDa side in the thickness direction of the intraocular lens 7. This bending of the bending portion 2c pushes the front restricting portion 2b up in the HD direction, i.e., toward the HDa side in the thickness direction of the intraocular lens 7. As a result, the contact of the front restricting portion 2b with the mounting surface 4a of the intraocular lens 7 is released, and a gap is created between the front restricting portion 2b and the front restricting portion 2b. The intraocular lens 7 can then move toward the LDa side relative to the front restricting portion 2b through this gap. That is, in the worn state, the bending portion 2c bends to push up the front restricting portion 2b, thereby releasing the restriction on movement of the intraocular lens 7 in the extrusion direction. Note that the front restricting portion 2b only needs to have the function of restricting movement of the intraocular lens 7 in the direction from the LDb side to the LDa side (i.e., the extrusion direction), and is not limited to the shape shown in Fig. 2 etc. Furthermore, the front restricting portion 2b is not limited to a configuration in which it abuts against the mounting surface 4a of the mounting member 4.

[0049] As described above, in the holder 10 according to this embodiment, the restricting member 2 has a front restricting portion 2b that restricts movement of the intraocular lens 7 in the extrusion direction, a contact portion 2d that abuts against the distal tip 30 when the holder 10 is attached to the device body (specifically, the distal tip 30), and a bending portion 2c that bends in the thickness direction of the intraocular lens 7 as the abutting portion 2d abuts against the device body, and pushes up the front restricting portion 2b in that thickness direction. Then, when the holder 10 is attached, the bending portion 2c pushes up the front restricting portion 2b, thereby releasing the restriction on movement of the intraocular lens 7 in the extrusion direction. Therefore, with a simpler structure, the intraocular lens 7 can be accurately set in the injector, and the intraocular lens 7 can be accurately released by the injector.

[0050] Here, the abutment portion 2d is formed thicker than the bent portion 2c. More specifically, as shown in FIG. 7 , the abutment portion 2d has a groove shape recessed toward the LDb side and extending in the HD direction. The thickness of at least the bottom of the groove shape is greater than the thickness of the bent portion 2c. As a result, when the restricting member 2 is bent due to the abutment of the abutment portion 2d against the distal tip 30, the abutment portion 2d is not deformed by the bending. Therefore, the restricting member 2 can be stably bent. Note that the abutment portion 2d may be configured to not deform due to the bending when the restricting member 2 is bent due to the abutment of the abutment portion 2d against the distal tip 30, and is not necessarily limited to a configuration in which the abutment portion 2d is formed thicker than the bent portion 2c. More specifically, the thickness of the abutment portion 2d is preferably 0.1 mm to 15.0 mm, more preferably 0.2 mm to 10.0 mm, and most preferably 6.2 mm. In the range in which the thickness of the contact portion 2d is greater than the thickness of the bent portion 2c, the thickness of the contact portion 2d is preferably 0.1 mm to 3.5 mm, more preferably 0.2 mm to 1.5 mm, and most preferably 0.5 mm.

[0051] 7 , the holder 10 is provided with a fixed end 5 relative to the restricting member 2 in order to stably achieve the above-described bending operation of the restricting member 2. When the restricting member 2 is bent, the contact portion 2d as a free end moves freely in the HD direction, while the fixed end 5 is fixed. The fixed end 5 is provided on the base 2a of the restricting member 2 on the LDb side of the bending portion 2c, i.e., on the opposite side of the bending portion 2c from the contact portion 2d.

[0052] 8 is a cross-sectional view showing the configuration of the fixed end 5 of the holder 10 according to this embodiment. As shown in FIG. 8, the lid main body 1a covers the end area of ​​the regulating member 2 on the LDb side of the surface on the HDa side.

[0053] The lid body 1a of the lid member 1 has a protrusion 5a. The protrusion 5a is formed on the HDb-side surface of the lid body 1a in a region covering the LDb-side end region of the regulating member 2. The protrusion 5a abuts against the regulating member 2. The abutment point of the protrusion 5a is on the LDb side of the bent portion 2c on the HDa-side surface of the regulating member 2, i.e., on the opposite side of the abutment portion 2d from the bent portion 2c. The abutment point between the regulating member 2 and the protrusion 5a locks the movement of the regulating member 2 in the HD direction associated with bending. In the holder 10 according to this embodiment, the abutment between the protrusion 5a and the regulating member 2 forms a fixed end 5 for the bending operation of the regulating member 2. By configuring the fixed end 5 in this manner, the bending operation of the regulating member 2 can be stabilized.

[0054] 7 and 8, the regulating member 2 is formed with locking portions 5b as components of the fixed end 5. As shown in FIG. 7, four locking portions 5b are formed as protrusions on the HDa-side surface of the regulating member 2. The four locking portions 5b are arranged so that the convex portions 5a fit between two of the locking portions 5b in the LD direction. The four locking portions 5b are provided for positioning the convex portions 5a relative to the regulating member 2. At the contact points between the regulating member 2 and the convex portions 5a, the convex portions 5a lock the movement of the regulating member 2 in the HD direction that occurs when the regulating member 2 is bent. Furthermore, positioning by the locking portions 5b prevents the position of the convex portions 5a from shifting when the regulating member 2 is bent, further stabilizing the fixed end 5 and thereby further stabilizing the bending operation of the regulating member 2.

[0055] (Folding Form of Holder 10) In the holder 10 according to this embodiment, the mounting member 4, the pressing member 3, the restricting member 2, and the lid member 1 are integrally configured and connected to one another via hinge portions. That is, these members are configured as a single unit that cannot be separated from one another. The holder 10 is an assembly in which the mounting member 4, the pressing member 3, the restricting member 2, and the lid member 1 are folded via the hinge portions. By configuring the holder 10 as a single unit in this way, it is possible to reduce assembly errors when assembling the holder 10 by combining the various components of the holder 10.

[0056] 9 and 10 are perspective views showing the holder 10 according to this embodiment in an unfolded state before assembly. Fig. 9 is a perspective view when the HDb-side surface 3R of the pressing member 3 faces upward, and Fig. 10 is a perspective view when the HDa-side surface 3S of the pressing member 3 faces upward. Note that in Figs. 9 and 10, the HDa-side surfaces of the cover member 1, the regulating member 2, the pressing member 3, and the mounting member 4 are designated as surfaces 1S, 2S, 3S, and 4S, and the HDb-side surfaces are designated as surfaces 1R, 2R, 3R, and 4R, respectively.

[0057] As shown in FIGS. 9 and 10 , the presser member 3 has a generally rectangular plate-like appearance. In the unfolded state of the holder 10 before assembly, the lid member 1, the restricting member 2, and the mounting member 4 are connected to the respective sides of the rectangular shape of the presser member 3 via hinge portions 6 a to 6 c. Specifically, of the four sides of the rectangular shape of the presser member 3, two sides extending in the LD direction are connected to one side via hinge portion 6 a, and the mounting member 4 is connected to the other side via hinge portion 6 b. Of the two sides of the rectangular shape of the presser member 3 extending in the WD direction, the restricting member 2 is connected to the side on the LDb side via hinge portion 6 c. In the unfolded state of the holder 10 before assembly, the surface 1S of the lid member 1, the surface 2S of the restricting member 2, and the surface 4S of the mounting member 4 face the same direction as the surface 3R of the presser member 3. In other words, the surface 1R of the cover member 1, the surface 2R of the regulating member 2, and the surface 4R of the placing member 4 face in the same direction as the surface 3S of the pressing member 3.

[0058] Furthermore, to facilitate folding of the various components, each of the hinge portions 6a to 6c has a thin portion 6d (second thin portion). These thin portions 6d are thinner than at least the cover member 1, the restricting member 2, the pressing member 3, and the placing member 4. The thickness of the hinge portions 6a to 6c is not particularly limited as long as it facilitates folding of the various components, but specifically, the thickness of the thin portion 6d (second thin portion) is preferably 0.1 mm to 1.0 mm, more preferably 0.2 mm to 0.6 mm, and most preferably 0.25 mm.

[0059] An example of the procedure for assembling the holder 10 (the holder set 150 for storing an intraocular lens) in a storage state in which the intraocular lens 7 is stored will now be described. Fig. 11 is a perspective view showing a state in the middle of assembling the holder set for storing an intraocular lens.

[0060] In this assembly procedure, the holder 10 is assembled in the following steps (a) to (d). (a) The restricting member 2 is folded onto the holding member 3 via the hinge portion 6c so that the surface 3S overlaps the surface 2R. At this time, the restricting member 2 fits into the fitting recess 3c of the holding member 3. (b) The lid member 1 is folded onto the folded body of the restricting member 2 and the holding member 3 via the hinge portion 6a so that the surface 2S and the surface 3S overlap the surface 1R. (c) The intraocular lens 7 is set onto the mounting member 4. By performing steps (a) to (c), the holder 10 is configured as shown in FIG. 11 . Then, (d) from the configuration shown in FIG. 11 , the folded body of the lid member 1, the restricting member 2, and the holding member 3 is folded onto the mounting member 4 in which the intraocular lens 7 is set via the hinge portion 6b so that the surface 3R overlaps the surface 4S. By carrying out the steps (a) to (d), the holder 10 in a storage state in which the intraocular lens 7 is stored, that is, the holder set 150 for storing an intraocular lens, is completed.

[0061] The order of steps (a) to (c) does not matter as long as it is possible to assemble the holder 10 into the configuration shown in Fig. 11. For example, step (c) may be performed first, and then steps (a) and (b) may be performed to assemble the holder 10.

[0062] (Intraocular Lens Storage Set) A holder in which an intraocular lens is stored (hereinafter, may be referred to as an intraocular lens storage holder set 150) is attached to the injector device body in order to insert the intraocular lens into the eye, and is stored in a storage container filled with a storage solution (e.g., physiological saline solution) in a storage state. The intraocular lens storage set according to this embodiment includes the intraocular lens storage holder set 150 and a storage container for storing the holder set in the storage solution. In a storage state, the intraocular lens is stored in the form of an intraocular lens storage set.

[0063] Fig. 12 is a perspective view showing the configuration of an intraocular lens storage set 200 according to this embodiment. Fig. 13 is a perspective view showing the configuration of a storage container 110 provided in the intraocular lens storage set 200.

[0064] 12, the intraocular lens storage set 200 includes the holder 10 in which the intraocular lens is stored, and a storage container 110. The storage container 110 is a container for storing the holder 10 in which the intraocular lens is stored, in a storage solution. In the form of the intraocular lens storage set 200, the storage container 110 is filled with the storage solution, and the top surface is sealed with a lid such as a seal.

[0065] As shown in FIG. 13 , the storage container 110 includes a bottom 111 and fixing portions 112 to 114. The bottom 111 has a shape that fits the HDb-side end face of the holder 10. This allows the restricting member 2 to come into contact with the bottom 111 when the holder 10 containing an intraocular lens is set in the storage container 110, preventing the front restricting portion 2b from being released from contact with the mounting surface 4a of the intraocular lens 7, preventing the intraocular lens 7 from moving toward the LDa side. Specifically, the bottom 111 includes two contact portion-accommodating regions 111a and a mounting member-accommodating region 111b. Each of the two contact portion-accommodating regions 111a has a concave shape that fits the shape of the HDb-side end face of the restricting member's contact portion on the holder 10. Furthermore, the mounting member-accommodating region 111b has a concave shape that fits the shape of the HDb-side end face of the mounting member on the holder 10. The contact portion fitting region 111a and the mounting member fitting region 111b prevent the holder 10 storing the intraocular lens from moving in the LD direction within the storage container 110 after the holder 10 is set in the storage container 110.

[0066] The fixing portions 112 to 114 are used to fix the holder 10 in which an intraocular lens is stored. In the storage container 110, the fixing portions 112 and 113 (first fixing portions) protrude from one of two inner surfaces facing each other in the WD direction, and the fixing portion 114 (second fixing portion) protrudes from the other inner surface. The fixing portions 112 to 114 are convex ridges extending in the HD direction. In the WD direction, the distance between the fixing portions 112 and 113 and the fixing portion 114 is the same as the width of the holder 10 in the WD direction or slightly smaller than that width. Specifically, the distance is the same as the width of the holder 10 in the WD direction or 2% to 10% of that width, preferably 3%. For this reason, when the holder 10 storing an intraocular lens is set in the storage container 110, the fixing parts 112 to 114 each come into contact with the side surfaces in the WD direction of the holder 10. This contact causes an inward force to act on the holder 10 from the fixing parts 112 to 114, and this force prevents the holder 10 from moving in the HD direction. As a result, the holder 10 storing the intraocular lens does not float in the storage solution within the storage container 110, and remains in the appropriate position within the storage container 110.

[0067] The inner surface of the storage container 110 also has two inclined surfaces 115 and 116 that face each other. The inclined surfaces 115 and 116 are formed on two inner surfaces that face each other in the WD direction. The inclined surfaces 115 and 116 face each other in the WD direction, and are formed so that the distance between them gradually increases from the HDa side toward the HDb side. The smallest distance between the inclined surfaces 115 and 116 is approximately the same as the width of the holder 10 in the WD direction. The inclined surfaces 115 and 116 thus formed make it easier for a user to insert a finger when removing the holder 10 containing an intraocular lens from the storage container 110, thereby facilitating removal of the holder 10.

[0068] (Intraocular Lens Insertion System) The intraocular lens insertion system according to this embodiment (hereinafter, sometimes simply referred to as the insertion system) is a system that inserts an intraocular lens into the eye using the holder 10 according to this embodiment. Therefore, this insertion system includes at least the intraocular lens 7, the holder 10, and the instrument body 60 of the injector 100 as components. That is, the intraocular lens insertion system according to this embodiment is a system that includes the instrument body 60 of the injector 100 (see FIGS. 5 and 6 ), the intraocular lens holder 10 (see FIGS. 1 to 3 ) for storing the intraocular lens 7, and the intraocular lens 7 stored in the holder 10, and the injector 100 has an extrusion mechanism that extrudes the intraocular lens 7 into the eye. In the intraocular lens insertion system according to this embodiment, the holder 10 is attached to the device body 60 and constitutes part of the push-out mechanism, and includes a restricting member 2 that restricts movement of the intraocular lens 7 when the intraocular lens 7 is stored, while the restricting member 2 is released from restriction on movement of the intraocular lens 7 when attached to the device body 60. Details of the configurations of the holder 10, device body 60, and intraocular lens 7, as well as the push-out mechanism for the intraocular lens 7, in the intraocular lens insertion system according to this embodiment are as described above, and therefore will not be described again.

[0069] The intraocular lens insertion system according to this embodiment may include the above-described intraocular lens storage set as a component. In an insertion system including the intraocular lens storage set, first, the holder 10 in which the intraocular lens is stored is removed from the storage container 110 of the intraocular lens storage set. Then, the removed holder 10 is attached to the instrument body 60, and the intraocular lens 7 is inserted into the patient's eye.

[0070] In the insertion system according to this embodiment, the intraocular lens 7 as a product is distributed in either (a) the form of an intraocular lens storage set or (b) the form of a set of the intraocular lens storage set and the instrument body 60 of the injector 100. In the case of the form (a), the user needs to prepare the instrument body 60 separately, and in the case of the form (b), the intraocular lens 7 is distributed and sold as a kit product.

[0071] That is, the kit product according to this embodiment is configured to include the above-described intraocular lens storage set and the instrument body 60 of the injector 100. By providing such a kit product, the user can purchase the intraocular lens storage set 200 and the instrument body 60 of the injector 100 as a single package, making it possible to set the appropriate instrument body 60 of the injector 100 for the holder set 150 for storing the intraocular lens. Furthermore, it is possible to accurately set the intraocular lens 7 in the injector 100, and it is possible to more effectively realize an intraocular lens 7 insertion system that can accurately release the intraocular lens 7 using the injector 100.

[0072] [Embodiment 2] Another embodiment of the present invention will be described below. For ease of explanation, components having the same functions as those described in the above embodiment will be denoted by the same reference numerals, and their description will not be repeated. Figure 14 is a perspective view showing a state in the middle of assembly of a holder 10A (a holder set 150A for storing an intraocular lens) in a storage state in which an intraocular lens 7 is stored in this embodiment. As shown in Figure 14, the holder 10A according to this embodiment differs from the holder 10 according to embodiment 1 in the following respects.

[0073] First, in the holder 10A according to this embodiment, the structure of the lens retaining portion 3f differs from the lens retaining portion 3a of the holder 10 according to the first embodiment. In the holder 10 according to the first embodiment shown in FIG. 11 , the dimension of the lens retaining portion 3a in the HD direction is approximately constant in the LD direction. On the other hand, in the holder 10A, the dimension of the lens retaining portion 3f in the HD direction is not approximately constant in the LD direction, but has a high portion 3g on the LDb side and a low portion 3h on the LDa side. The lens retaining portion 3f has a step formed by the high portion 3g and the low portion 3h. When the folded body of the cover member 1, the regulating member 2, and the retaining member 3 is folded onto the mounting member 4 on which the intraocular lens is set, the high portion 3g is located directly above the lens portion of the intraocular lens. The dimension of the high portion 3g in the HD direction is designed so that the intraocular lens placed on the mounting member 4 does not move more than necessary toward the HDa side. Furthermore, the low portion 3h prevents the valley-folded intraocular lens from coming into contact with the lens holding portion 3f more than necessary when the intraocular lens is pushed out into the eye.

[0074] Next, in the holder 10A according to this embodiment, the structure of the lens retaining portion 3i is different from the lens retaining portion 3b of the holder 10 according to embodiment 1. In the holder 10 shown in FIG. 11 , of the two convex ribs extending in the LD direction that make up the lens retaining portion 3b, the convex rib closest to the hinge portion 6b (hereinafter referred to as convex rib A) has a substantially constant HD dimension in the LD direction. On the other hand, in the holder 10A, the HD dimension of the convex rib A is not substantially constant in the LD direction, and an inclined portion 3j is formed on the LDb side. The inclined portion 3j is formed so that the HD dimension increases from the LDb-side end of the convex rib A toward the LDa side. The inclined portion 3j prevents the rear support portion of the intraocular lens from getting caught on the convex rib A when the rear support portion moves toward the LDa side due to the extrusion of the intraocular lens.

[0075] Next, in the holder 10A according to this embodiment, the structure of the passage portion 4e of the mounting member 4 differs from that of the holder 10 according to the first embodiment. Specifically, in the holder 10A according to this embodiment, a notch 4f is formed in the inner wall of the two inner walls constituting the passage portion 4e of the mounting member 4 that is closer to the hinge portion 6b. The notch 4f is formed in the inner wall of the passage portion 4e in the HDa side portion and in the end portion on the LDb side. The notch 4f prevents interference between the mounting member 4 and the folded body when the folded body of the cover member 1, the restricting member 2, and the pressing member 3 is folded onto the mounting member 4 in which an intraocular lens is set.

[0076] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in the embodiments are also included in the technical scope of the present invention.

[0077] [Summary] The intraocular lens holder 10 according to aspect 1 of the present invention is attached to the instrument body 60 of the injector 100 and forms part of the extrusion mechanism that extrudes the intraocular lens 7 into the eye, and is also an intraocular lens holder 10 for storing the intraocular lens 7, and is configured to include a restricting member 2 that restricts the movement of the intraocular lens 7 when the intraocular lens 7 is in a stored state, but that releases the restriction on the movement of the intraocular lens 7 when attached to the instrument body 60.

[0078] According to the above configuration, the movement of the intraocular lens 7 within the holder 10 is restricted by the restricting member 2 in the stored state, so that the intraocular lens 7 remains in the correct position within the holder 10 even when the holder 10 is transported in the stored state. This allows the intraocular lens 7 to be accurately set in the injector 100. Furthermore, according to the above configuration, the restriction on the movement of the intraocular lens 7 by the restricting member 2 is released when the holder 10 is attached to the instrument body 60, so the extrusion operation of the extrusion mechanism of the injector 100 to extrude the intraocular lens 7 is not hindered. Therefore, because the holder 10 includes the restricting member 2, the intraocular lens 7 can be accurately set in the injector 100, allowing the injector 100 to accurately release the intraocular lens 7.

[0079] In an intraocular lens holder 10 according to Aspect 2 of the present invention, in Aspect 1, the restricting member 2 has a front restricting portion 2b that restricts movement of the intraocular lens 7 in the extrusion direction (direction from the LDb side to the LDa side), a contact portion 2d that abuts against the device body 60 in an attached state in which the intraocular lens 7 is attached to the device body 60, and a bending portion 2c that bends in the thickness direction of the intraocular lens 7 (direction HD) as the abutting portion 2d abuts against the device body 60 and pushes up the front restricting portion 2b in the thickness direction as the contact portion 2d abuts against the device body 60, and in the attached state, the restriction on movement of the intraocular lens 7 in the extrusion direction is released by the bending portion 2c pushing up the front restricting portion 2b. This makes it possible to accurately set the intraocular lens 7 in an injector with a simpler structure, and to accurately release the intraocular lens 7 by the injector.

[0080] In the intraocular lens holder 10 according to aspect 3 of the present invention, in aspect 1 or 2, the restricting member 2 has a base 2a on which the front restricting portion 2b, the abutting portion 2d, and the bending portion 2c are formed, and in the stored state, the base 2a extends in the extrusion direction, the front restricting portion 2b protrudes perpendicularly to the base 2a toward the intraocular lens 7, and the abutting portion 2d protrudes perpendicularly to the base 2a toward the device body 60. This makes it possible, with a simple structure, to restrict the movement of the intraocular lens 7 by the restricting member 2 and to release the restriction on the movement of the intraocular lens 7 when the restricting member 2 is bent.

[0081] In the intraocular lens holder 10 according to Aspect 4 of the present invention, in Aspect 2 or 3, the bending portion 2 c is a thin-walled portion 2 e (first thin-walled portion) that is thinner than the base portion 2 a, making it easier for the restricting member 2 to bend via the bending portion 2 c.

[0082] The intraocular lens holder 10 according to Aspect 5 of the present invention is configured such that the abutting portion 2d is thicker than the bending portion 2c in any of Aspects 2 to 4. This prevents deformation of the abutting portion 2d when the restricting member 2 is bent due to the abutment of the abutting portion 2d against the distal tip 30.

[0083] An intraocular lens holder 10 according to Aspect 6 of the present invention is configured as any one of Aspects 1 to 5, with a lid member 1 covering the restricting member 2, the lid member 1 having a lid main body 1a, the lid main body 1a having a convex portion 5a that abuts against the restricting member 2, and the abutment between the convex portion 5a and the restricting member 2 constitutes a fixed end 5 for the bending movement of the restricting member 2. This makes it possible to stabilize the bending movement of the restricting member 2.

[0084] The intraocular lens holder 10 according to Aspect 7 of the present invention is configured as in Aspect 6, wherein the lid body 1 a is formed in a U-shape (WD direction) so as to ensure a space for the restricting member 2 to bend via the bending portion 2 c. This ensures a space for the restricting member 2 to bend.

[0085] An intraocular lens holder 10 according to aspect 8 of the present invention is any of aspects 1 to 7, and includes a mounting member 4 having a mounting surface 4a on which the intraocular lens 7 is placed, a pressing member 3 that covers the mounting member 4 and, together with the mounting member 4, restricts movement of the intraocular lens 7 in the thickness direction, and a lid member 1 having a lid main body 1a that covers the restricting member 2, the restricting member 2 being disposed between the pressing member 3 and the lid member 1. This allows for accurate setting of the intraocular lens 7 in an injector, and realizes a holder 10 that allows the intraocular lens 7 to be accurately released by the injector.

[0086] A ninth aspect of the present invention relates to an intraocular lens holder 10 according to the eighth aspect, wherein the mounting member 4, the pressing member 3, the restricting member 2, and the cover member 1 are integrally constructed and connected to one another via hinge portions 6 a, 6 b, and 6 c, and the mounting member 4, the pressing member 3, the restricting member 2, and the cover member 1 are folded via the hinge portions 6 a, 6 b, and 6 c to form an assembly. By constructing the holder 10 as an integral unit in this manner, it is possible to reduce assembly errors of the holder 10 when assembling the holder 10 by combining various components of the holder 10.

[0087] The intraocular lens holder 10 according to Aspect 10 of the present invention is configured as in Aspect 9, wherein the hinge portions 6a to 6c have a thin portion 6d (second thin portion) that is thinner than the mounting member 4, the pressing member 3, the restricting member 2, and the lid member 1. This makes it easier to fold the various members.

[0088] A holder set 150 for storing an intraocular lens according to an eleventh aspect of the present invention is configured to include the holder 10 for an intraocular lens according to any one of aspects 1 to 10, and an intraocular lens 7 stored in the holder 10. This allows for accurate setting of the intraocular lens 7 in the injector, and realizes a holder set 150 for storing an intraocular lens that can accurately release the intraocular lens 7 using the injector.

[0089] An intraocular lens storage set 200 according to Aspect 12 of the present invention is configured to include the holder set 150 for storing an intraocular lens according to Aspect 11, and a storage container 110 for storing the holder set in a storage solution. This allows for accurate setting of the intraocular lens 7 in the injector, and realizes an intraocular lens storage set that allows the intraocular lens 7 to be accurately released by the injector.

[0090] An intraocular lens storage set 200 according to Aspect 13 of the present invention is configured in that, in Aspect 12, the storage container 110 has fixing portions 112 to 114 for fixing the holder set. As a result, the holder set (holders 10 in which an intraocular lens is stored) does not float in the storage solution within the storage container 110, and remains in the appropriate position within the storage container 110.

[0091] The intraocular lens holder 10 according to aspect 14 of the present invention is an intraocular lens holder 10 that is attached to the instrument body 60 of the injector 100 and constitutes part of a pushing mechanism that pushes the intraocular lens 7 into the eye, and that stores the intraocular lens 7, and that includes a mounting member 4 having a mounting surface 4a on which the intraocular lens 7 is placed, a pressing member 3 that covers the mounting member 4 and restricts movement of the intraocular lens 7 in the thickness direction, a restricting member 2 that restricts movement of the intraocular lens 7 in a storage state in which the intraocular lens 7 is stored, but that is released from the restriction on movement of the intraocular lens 7 when attached to the instrument body 60, and a lid member 1 that covers the restricting member 2, and that includes the following (1) to (3):(1) The restricting member 2 includes a base 2a extending in the extrusion direction of the intraocular lens 7 (direction from the LDb side to the LDa side), a front restricting portion 2b extending perpendicular to the base 2a in the stored state and restricting movement of the intraocular lens 7 in the extrusion direction, a contacting portion 2d extending perpendicular to the base 2a in the stored state and contacting the device main body 60 in the attached state where the intraocular lens 7 is attached to the device main body 60, and a contacting portion 2c having a thickness greater than that of the base 2a. a bending portion 2c that bends in the thickness direction (HD direction) of the intraocular lens 7 as the abutting portion 2d abuts against the device body 60 and pushes up the front restricting portion 2b in the thickness direction, the abutting portion 2d is formed thicker than the bending portion 2c, and in the worn state, the bending portion 2c pushes up the front restricting portion 2b, thereby releasing the restriction on movement of the intraocular lens 7 in the extrusion direction, (2) The lid member 1 has a lid main body 1a formed in a U-shape so as to secure a space for the regulating member 2 to bend via the bending portion 2c, and the lid main body 1a has a convex portion 5a that abuts against the regulating member 2, and the abutment of the convex portion 5a with the regulating member 2 constitutes a fixed end 5 for the bending operation of the regulating member 2; (3) The regulating member 2 is disposed between the pressing member 3 and the lid member 1, and the placing member 4, the pressing member 3, the regulating member 2, and the lid member 1 are integrally formed and connected to each other via hinge portions 6a to 6c, and are an assembly in which the placing member 4, the pressing member 3, the regulating member 2, and the lid member 1 are folded via the hinge portions 6a to 6c;

[0092] According to the above configuration, the intraocular lens 7 can be accurately set in the injector 100, and the intraocular lens 7 can be accurately released by the injector 100.

[0093] An intraocular lens insertion system according to Aspect 15 of the present invention comprises an instrument body 60 of an injector 100, an intraocular lens holder 10 for storing an intraocular lens 7, and the intraocular lens 7 stored in the holder 10, wherein the injector 100 is an intraocular lens insertion system having an extrusion mechanism for extruding the intraocular lens 7 into the eye, and the holder 10 is attached to the instrument body 60 to form part of the extrusion mechanism, and includes a restricting member 2 that restricts movement of the intraocular lens 7 in a storage state in which the intraocular lens 7 is stored, but that releases the restriction on movement of the intraocular lens 7 when attached to the instrument body 60. This allows for accurate setting of the intraocular lens 7 in the injector 100, and realizes an intraocular lens insertion system that can accurately release the intraocular lens 7 by the injector 100.

[0094] A kit product according to Aspect 16 of the present invention is configured to include the intraocular lens storage set 200 of Aspect 12 or 13 and the instrument body 60 of the injector 100. By providing such a kit product, the user can purchase the intraocular lens storage set 200 and the instrument body 60 of the injector 100 as a single package, making it possible to set the appropriate instrument body 60 of the injector 100 for the holder set 150 for storing the intraocular lens. Furthermore, it is possible to accurately set the intraocular lens 7 in the injector 100, and it is possible to more effectively realize an intraocular lens insertion system that can accurately release the intraocular lens 7 using the injector 100.

[0095] The injector 100 according to aspect 17 of the present invention is configured to include a holder mounting portion (rectangular portion 33) for mounting the holder 10 for an intraocular lens according to any one of aspects 1 to 10. This allows the holder 10 to be accurately set on the injector 100, thereby realizing an intraocular lens injector 100 that can accurately release the intraocular lens 7.

[0096] A storage container 110 according to aspect 18 of the present invention is a storage container 110 for storing the holder set for storing an intraocular lens according to aspect 11 in a storage solution, and is configured to include a bottom 111 having a shape that fits the lower end face of the holder 10. As a result, when the holder 10 storing an intraocular lens is set into the storage container 110, the restricting member 2 comes into contact with the bottom 111, and the abutment of the front restricting part 2b against the mounting surface 4a of the intraocular lens 7 is not released, so that the intraocular lens 7 does not move toward the LDa side.

[0097] A storage container 110 according to aspect 19 of the present invention is the same as in aspect 18, and has fixing portions 112 to 114 for fixing the holder 10, and the fixing portions 112 to 114 include a first fixing portion (fixing portions 112, 113) which is a convex ridge protruding from one of two inner surfaces facing each other in the width direction (WD direction) of the holder 10 and extending in the up-down direction (HD direction), and a second fixing portion (fixing portions 112, 113) which is a convex ridge protruding from the other inner surface of the two inner surfaces and extending in the up-down direction (HD direction). and a second fixing portion (fixing portion 114) that fixes the intraocular lens to the holder 10, the first and second fixing portions abutting against side surfaces of the holder 10 in the width direction (WD direction), and the distance between the first and second fixing portions is the same as or smaller than the width of the holder 10 so that an inward force is exerted on the holder 10 from the first and second fixing portions by the abutment of the first and second fixing portions against the side surfaces of the holder 10 in the width direction (WD direction). As a result, the holder 10 in which the intraocular lens is stored in the storage container 110 does not float in the storage solution, and remains in the appropriate position within the storage container 110.

[0098] A storage container 110 according to Aspect 20 of the present invention is configured in Aspect 18 or 19 such that the inner surface of the storage container 110 has two inclined surfaces 115 and 116 facing each other, the two inclined surfaces 115 and 116 facing each other in the width direction (WD direction) of the holder 10, and are formed so that the distance between them gradually increases from the upper side (HDa side) to the lower side (HDb side), and the smallest distance between the two inclined surfaces 115 and 116 is the same as the width (width in the WD direction) of the holder 10. By forming the inclined surfaces 115 and 116 in this manner, it is easy to insert fingers when removing the holder 10 containing an intraocular lens from the storage container 110, making it easy to remove the holder 10.

[0099] DESCRIPTION OF SYMBOLS 1 Lid member 1a Lid main body 1b Injection portion 1c Hand portion 2 Restriction member 2a Base portion 2b Front restriction portion 2c Bent portion 2d Contact portion 2e Thin portion (first thin portion) 3 Pressing member 3b, 3i Lens pressing portion 3c Fitting recess 3d Through hole 3e Communication hole 3j Inclined portion 4 Mounting member 4a Mounting surface 5 Fixed end 5a Convex portion 6a, 6b, 6c Hinge portion 6d Thin portion (second thin portion) 7 Intraocular lens 10 Holder 30 Distal tip 30d Contact region 60 Instrument main body 100 Injector 110 Storage container 112, 113, 114 Fixing portion 150 Holder set for storing intraocular lens 200 Intraocular lens storage set

Claims

1. An intraocular lens holder that is attached to the instrument body of the injector and constitutes a part of an extrusion mechanism that extrudes the intraocular lens into the eye, and that stores the intraocular lens, An intraocular lens holder comprising a restricting member that restricts movement of the intraocular lens in a storage state in which the intraocular lens is stored, and that releases the restriction on movement of the intraocular lens when the holder is attached to the device body, The regulating member is a front restriction portion that restricts movement of the intraocular lens in the extrusion direction; a contact portion that contacts the instrument body when the instrument is attached to the instrument body; a bending portion that bends in a thickness direction of the intraocular lens as the abutting portion abuts against the device body and pushes up the front restriction portion in the thickness direction, In the attached state, the bent portion pushes up the front restriction portion, thereby releasing the restriction on the movement of the intraocular lens in the extrusion direction.

2. the restricting member has the front restricting portion, the abutting portion, and a base portion on which a bent portion is formed, In the storage state, The base portion extends in the extrusion direction, the forward restriction portion protrudes toward the intraocular lens in a direction perpendicular to the base portion, The holder for an intraocular lens according to claim 1 , wherein the abutment portion projects perpendicularly to the base portion toward the device body.

3. The holder for an intraocular lens according to claim 2 , wherein the bent portion is a first thin portion having a thickness smaller than that of the base portion.

4. The intraocular lens holder according to claim 1 , wherein the contact portion is formed to be thicker than the bent portion.

5. a cover member for covering the restricting member; The lid member has a lid body, The lid body has a protrusion that contacts the restricting member, 5. The intraocular lens holder according to claim 1, wherein the convex portion abuts against the restricting member to form a fixed end for bending the restricting member.

6. The intraocular lens holder according to claim 5 , wherein the lid body is formed in a U-shape so as to ensure a space for the restriction member to bend via the bending portion.

7. a mounting member having a mounting surface on which the intraocular lens is mounted; a pressing member that covers the mounting member and, together with the mounting member, restricts movement of the intraocular lens in the thickness direction; a lid member having a lid body that covers the restricting member, The restricting member is disposed between the pressing member and the lid member. A holder for an intraocular lens according to any one of claims 1 to 4.

8. the mounting member, the pressing member, the regulating member, and the lid member are integrally configured and connected to each other via a hinge portion, The intraocular lens holder according to claim 7 , wherein the mounting member, the pressing member, the regulating member, and the lid member are assembled by being folded via the hinge portion.

9. 9. The intraocular lens holder according to claim 8, wherein the hinge portion has a second thin portion having a thickness smaller than that of the placement member, the pressing member, the restricting member, and the cover member.

10. A holder for an intraocular lens according to claim 1; and an intraocular lens stored in the holder.

11. The holder set for storing an intraocular lens according to claim 10; and a storage container for storing the holder set in a storage solution.

12. The intraocular lens storage set according to claim 11 , wherein the storage container has a fixing portion for fixing the holder set.

13. An intraocular lens holder that is attached to the instrument body of the injector and constitutes a part of an extrusion mechanism that extrudes the intraocular lens into the eye, and that stores the intraocular lens, a mounting member having a mounting surface on which the intraocular lens is mounted; a pressing member that covers the mounting member and restricts movement of the intraocular lens in a thickness direction; a restricting member that restricts movement of the intraocular lens in a storage state in which the intraocular lens is stored, and that releases the restriction on movement of the intraocular lens when the intraocular lens is attached to the device body; a cover member for covering the restricting member, and an intraocular lens holder comprising the following (1) to (3): (1) The regulating member is a base portion extending in the extrusion direction of the intraocular lens; a front restriction portion that extends perpendicular to the base portion in the stored state and restricts movement of the intraocular lens in a pushing direction; a contact portion that extends perpendicular to the base portion in the storage state and contacts the tool body in an attached state where the tool body is attached to the tool body; a bending portion having a first thin portion having a thickness smaller than that of the base portion, bending in a thickness direction of the intraocular lens as the abutting portion abuts against the device body, and pushing up the forward restricting portion in the thickness direction, the abutting portion being thicker than the bending portion, In the mounted state, the bending portion pushes up the front restriction portion, thereby releasing the restriction on the movement of the intraocular lens in the extrusion direction, (2) The lid member has a lid body formed in a U-shape so as to secure a space for the regulating member to bend via the bending portion, The lid body has a protrusion that contacts the restricting member, a fixed end of the bending movement of the restricting member is formed by the contact between the protrusion and the restricting member; (3) The restricting member is disposed between the pressing member and the lid member, the mounting member, the pressing member, the regulating member, and the lid member are integrally configured and connected to each other via a hinge portion, The mounting member, the pressing member, the regulating member, and the cover member are folded via the hinge portion to form an assembly.

14. an injector device body; An intraocular lens insertion system comprising: an intraocular lens holder for storing an intraocular lens; and an intraocular lens stored in the holder, wherein the injector has an extrusion mechanism for extruding the intraocular lens into the eye, The holder is The extrusion mechanism is attached to the device body, and constitutes a part of the extrusion mechanism. An intraocular lens insertion system including a restricting member that restricts movement of the intraocular lens in a storage state in which the intraocular lens is stored, and that releases the restriction on movement of the intraocular lens when attached to the device body, wherein the restricting member: a front restriction portion that restricts movement of the intraocular lens in the extrusion direction; a contact portion that contacts the instrument body when the instrument is attached to the instrument body; a bending portion that bends in a thickness direction of the intraocular lens as the abutting portion abuts against the device body and pushes up the front restriction portion in the thickness direction, An intraocular lens insertion system in which, in the attached state, the bending portion pushes up the forward restriction portion, thereby releasing the restriction on movement of the intraocular lens in the extrusion direction.

15. The intraocular lens storage set according to claim 11 or 12; A kit product comprising an injector device body.

16. An injector comprising a holder mounting portion for mounting the intraocular lens holder according to any one of claims 1 to 4.

17. A storage container for storing the holder set for storing an intraocular lens according to claim 10 in a storage solution, the storage container having a bottom having a shape that fits the lower end surface of the holder.

18. a fixing portion for fixing the holder set; the fixing portion includes a first fixing portion which is a convex rib that protrudes from one of two inner surfaces facing each other in the width direction of the holder and extends in the vertical direction, and a second fixing portion which is a convex rib that protrudes from the other of the two inner surfaces and extends in the vertical direction, the first and second fixing portions abut against side surfaces of the holder in a width direction; 18. A storage container as described in claim 17, wherein the spacing between the first and second fixing portions is the same as or smaller than the width of the holder so that an inward force is exerted on the holder from the first and second fixing portions when the first and second fixing portions abut against the widthwise side surfaces of the holder.

19. The inner surface of the storage container has two inclined surfaces facing each other, The two inclined surfaces are opposed to each other in the width direction of the holder, and are formed so that the distance between them gradually increases from the upper side to the lower side, 19. The storage container according to claim 17 or 18, wherein the smallest distance between the two inclined surfaces is the same as the width of the holder.