Holder for intraocular lenses and its use

Abstract

This allows for precise setting of the intraocular lens into the injector and enables accurate ejection of the intraocular lens by the injector. [Solution] The holder (10) for the intraocular lens includes a restricting member (2) that restricts the movement of the intraocular lens (7) when the intraocular lens (7) is stored, while the restriction on the movement of the intraocular lens (7) is released when it is attached to the tip (30).

Description

Technical Field

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

Background Art

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

[0003] Here, among conventional injectors for intraocular lenses, there is a type in which the user sets the intraocular lens itself in the injector before use. In this type of injector, there is a problem that the setting of the intraocular lens is complicated. Further, in addition to this problem, since many users take out the intraocular lens from the storage container by themselves and set it in the injector, problems such as breakage of the intraocular lens due to a setting error of the intraocular lens or abnormal behavior of the intraocular lens may occur.

[0004] Therefore, as an insertion system for an intraocular lens 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). The semi-preset type injector has a holder for holding an intraocular lens as a part of the injector body. Therefore, in the semi-preset type system, the setting of the intraocular lens is completed by taking out the holder in which the intraocular lens is accommodated from the storage container and fitting the entire holder to a predetermined position of the injector.

Prior Art Documents

Patent Documents

[0005] [Patent Document 1] Japanese Patent Publication No. 2001-104363 [Overview of the project] [Problems that the invention aims to solve]

[0006] However, depending on the type and shape of the intraocular lens, the intraocular lens may move within the holder during transport, and may not remain in the correct position within the holder. Therefore, in systems using a semi-preset type injector, such as that described in Patent Document 1, when the holder containing the intraocular lens is set in the injector and the intraocular lens is to be ejected, the plunger may not be able to properly grasp and eject the intraocular lens in the correct position because the intraocular lens is not in the correct position relative to the plunger, resulting in the problem of not being able to accurately eject the intraocular lens.

[0007] One aspect of the present invention aims to provide an intraocular lens holder and its use, which enables precise setting of the intraocular lens into an injector and precise ejection of the intraocular lens by the injector. [Means for solving the problem]

[0008] To solve the above problems, an intraocular lens holder according to one aspect of the present invention is attached to the instrument body of an injector and constitutes part of an extrusion mechanism for extruding an intraocular lens into the eye, and is an intraocular lens holder for storing the intraocular lens, and includes 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), while the restriction on the movement of the intraocular lens is released when the holder is attached to the instrument body.

[0009] To solve the above problems, an intraocular lens holder according to another aspect of the present invention is an intraocular lens holder that is attached to the instrument body of an injector and constitutes part of an extrusion mechanism for extruding an intraocular lens into the eye, and is for storing an intraocular lens, 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 the movement of the intraocular lens in the thickness direction; a restricting member that restricts the movement of the intraocular lens when the intraocular lens is stored, but releases the restriction on the movement of the intraocular lens when attached to the instrument body; and a lid member that covers the restricting member, and comprising the following (1) to (3); (1) The restricting member has a base portion extending in the extrusion direction of the intraocular lens, a front restricting portion extending perpendicularly to the base portion in the storage state and restricting movement of the intraocular lens in the extrusion direction, a contact portion extending perpendicularly to the base portion in the storage state and contacting the instrument body when mounted on the instrument body, and a first thin-walled portion having a smaller thickness than the base portion, which bends in the thickness direction of the intraocular lens as the contact portion contacts the instrument body, and pushes up the front restricting portion in that thickness direction, wherein the contact portion is formed to be thicker than the bent portion, and in the mounted state, the restriction on movement of the intraocular lens in the extrusion direction is released by the bent portion pushing up the front restricting portion. (2) The lid member has a lid body formed in a U shape so as to secure a space through the bent portion for the restricting member to bend, the lid body has a protrusion that abuts against the restricting member, and the contact between the protrusion and the restricting member constitutes a fixed end for the bending motion of the restricting member. (3) The regulating member is positioned between the pressing member and the lid member, and the aforementioned mounting member, pressing member, regulating member, and lid member are integrally formed and connected to each other via a hinge portion, forming an assembly in which the aforementioned mounting member, pressing member, regulating member, and lid member are folded via the hinge portion.

[0010] To solve the above problems, an intraocular lens insertion system according to yet another aspect of the present invention comprises an injector instrument body, an intraocular lens holder for storing the intraocular lens in a pre-use state where 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 instrument body and constitutes part of the extrusion mechanism, and includes 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 the holder is attached to the instrument body. [Effects of the Invention]

[0011] According to these embodiments of the present invention, precise setting of the intraocular lens into the injector is possible, and precise ejection of the intraocular lens by the injector is possible. [Brief explanation of the drawing]

[0012] [Figure 1] This is a perspective view showing the overall configuration of the holder for an intraocular lens according to Embodiment 1 of the present invention in a storage state. [Figure 2] This is a cross-sectional view perpendicular to the width direction (WD direction) showing the overall configuration of the intraocular lens holder according to Embodiment 1 of the present invention in a stored state. [Figure 3] This is a cross-sectional view perpendicular to the longitudinal direction (LD direction) showing the overall configuration of the holder for an intraocular lens according to Embodiment 1 of the present invention in a stored state. [Figure 4] This is a top view showing the state when an intraocular lens is placed on a mounting member in a holder for an intraocular lens according to Embodiment 1 of the present invention. [Figure 5] This is a perspective view showing the overall configuration of the instrument body of an injector to which a holder for an intraocular lens according to Embodiment 1 of the present invention is attached. [Figure 6] Figure 5 is a perspective view showing the overall configuration of an injector in which a holder for an intraocular lens according to Embodiment 1 of the present invention is attached to the instrument body shown. [Figure 7]It is a perspective view for explaining the operation of the regulating member in the storage state and the operation of the regulating member in the mounted state in the holder for an intraocular lens according to Embodiment 1 of the present invention. [Figure 8] It is a cross-sectional view showing the configuration of the fixed end of the holder for an intraocular lens according to Embodiment 1 of the present invention. [Figure 9] It is a perspective view when the surface 3R on the HDb side of the pressing member 3 showing the unfolded state before assembly of the holder for an intraocular lens according to Embodiment 1 of the present invention is directed upward. [Figure 10] It is a perspective view when the surface 3S on the HDa side of the pressing member 3 showing the unfolded state before assembly of the holder for an intraocular lens according to Embodiment 1 of the present invention is directed upward. [Figure 11] It is a perspective view showing the state during assembly of the holder set for storing an intraocular lens according to Embodiment 1 of the present invention. [Figure 12] It is a perspective view showing the configuration of the intraocular lens storage set according to Embodiment 1 of the present invention. [Figure 13] It is a perspective view showing the configuration of the storage container provided in the intraocular lens storage set shown in FIG. 12. [Figure 14] It is a perspective view showing the state during assembly of the holder set for storing an intraocular lens according to Embodiment 2 of the present invention.

Modes for Carrying Out the Invention

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

[0014] [Embodiment 1] Hereinafter, Embodiment 1 of the present invention will be described in detail.

[0015] (Holder for Intraocular Lens and Holder Set for Storing Intraocular Lens) The holder according to the present embodiment has a function of being attached to the instrument body of the injector and constituting a part of the extrusion mechanism of the intraocular lens. At the same time, the holder according to the present embodiment has a function of storing the intraocular lens. In the state before attaching the holder to the instrument body of the intraocular lens injector described later (hereinafter, sometimes simply referred to as the "state before use"), in the holder, no active (intentional) external force from the holder is applied to the intraocular lens. Therefore, no stress against the external force is generated, and no deformation due to the external force or the stress occurs. Here, the external force means, for example, a force generated by active (intentional) contact or interference between various members in the holder and the intraocular lens, and the stress is the stress inside the intraocular lens against the external force. When such external force and stress are applied to the intraocular lens, the intraocular lens may deform.

[0016] First, the configuration of the holder according to the present embodiment in the storage state where the intraocular lens is stored will be described.

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

[0018] As shown in Figures 1 to 3, the intraocular lens holder 10 according to this embodiment comprises a lid member 1, a restricting member 2, a pressing member 3, and a mounting member 4. The lid 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 lid member 1 are provided in this order from the HDb side to the HDa side. Note that the holder 10 only needs to include the lid member 1, the restricting member 2, the pressing member 3, and the mounting member 4, and is not necessarily limited to a configuration in which all of these members are connected via a hinge portion. It may also be a configuration in which these members are arranged individually, or a configuration in which multiple of these members are combined.

[0019] As shown in Figure 4, the mounting member 4 has a mounting surface 4a on which the intraocular lens 7 is mounted. The holder 10 is attached to the injector's instrument body from the HDb-side end face of the mounting member 4. When the holder 10 is attached to the injector's instrument body, most of the portion of the mounting member 4 from the HDb-side end face to the HDa-side is housed in the instrument body.

[0020] Here, the intraocular lens 7 comprises a lens portion 7a, an anterior support portion 7b, and a posterior support portion 7c. The lens portion 7a is the lens part that functions as a crystalline lens after intraocular insertion. The anterior support portion 7b and the posterior support portion 7c are formed to extend curvedly from the side surface of the lens portion 7a and have the function of supporting the lens portion 7a within the eye after intraocular insertion. The anterior support portion 7b and the posterior support portion 7c are arranged in a point-symmetric positional relationship with the center of the lens portion 7a as the center of symmetry. These lens portion 7a, anterior support portion 7b, and posterior 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, anterior support portion 7b, and posterior support portion 7c are integrally molded is described as an example. Note that the intraocular lens 7 only needs to include a lens portion 7a, an anterior support portion 7b, and a posterior support portion 7c, and is not necessarily limited to a single-piece type, but may also be a multi-piece type or a flat plate type.

[0021] The mounting member 4 has a passage portion 4e formed in the central part in the WD direction, extending in the LD direction. When the holder 10 is attached to the instrument body of the injector, the passage portion 4e constitutes a passage through which the intraocular lens 7, which is pushed out toward the LDa side, passes. The mounting surface 4a is formed as the bottom surface (HDb side bottom surface) of the passage portion 4e. The mounting member 4 also has a lens posterior restricting portion 4b, a lens upper restricting portion 4c, and a plunger position restricting portion 4d. The lens posterior restricting portion 4b has the function of restricting the movement of the intraocular lens 7 placed on the mounting surface 4a toward the LDb side, and has a shape that is bent in accordance with the shape of the posterior support portion 7c. The lens upper restricting portion 4c is provided protruding from one of the two side walls of the passage portion 4e. The lens upper restricting portion 4c has the function of restricting the movement of the lens portion 7a of the intraocular lens 7 toward the HDa side. The plunger position regulating part 4d is provided at the LDb side end of the mounting member 4 and has a clamping portion that grips the tip of the plunger. The plunger position regulating part 4d regulates 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 the movement of the intraocular lens 7 in the thickness direction (HD direction). More specifically, the retaining member 3 is a rectangular plate-shaped member 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 the movement of the intraocular lens 7, which is placed on the mounting surface 4a, in the thickness direction. 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 the 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 to a specific range, so that the intraocular lens 7 is always placed on the mounting surface 4a. As a result, the problems of the plunger riding up onto the intraocular lens 7 and the plunger passing under the intraocular lens 7 are avoided.

[0024] Furthermore, the injected viscoelastic substance gets under the intraocular lens 7, causing it to lift up and preventing the plunger from effectively pushing out the intraocular lens 7.

[0025] The intraocular lens 7 is either a thin intraocular lens or a thick intraocular lens that is 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 created above the thin intraocular lens when the holder 10 holds the thin intraocular lens, the intraocular lens can be held stably.

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

[0027] The restricting member 2 has the function of restricting the movement of the intraocular lens 7, which is placed on the mounting surface 4a, toward the LDa side. Within the holder 10, the intraocular lens 7 is stored with its movement toward the LDa side restricted by the restricting member 2. The restricting member 2 has a base portion 2a, an anterior restricting portion 2b, a bent portion 2c, and a contact portion 2d. The base portion 2a extends in the direction from the LDb side to the LDa side, i.e., the extrusion direction. The base portion 2a is also in the form of a T-shaped plate, with the end on the LDa side branching into two. Furthermore, in the LD direction, the two branched ends of the base portion 2a are located further toward the LDa side than the LDa-side ends of the pressing member 3 and the mounting member 4. The anterior restricting portion 2b, the bent portion 2c, and the contact portion 2d are formed on the base portion 2a.

[0028] The anterior restricting portion 2b protrudes perpendicularly (downward) from the base portion 2a toward the intraocular lens 7. The retaining member 3 has a through hole 3d that penetrates in the HD direction. The anterior restricting portion 2b passes through the through hole 3d and contacts the mounting surface 4a of the mounting member 4. Also, as shown in Figure 2, in the storage state, the anterior restricting portion 2b is located between the anterior support portion 7b and the lens portion 7a of the intraocular lens 7 placed on the mounting surface 4a. The anterior restricting portion 2b only needs to have the function of restricting movement of the intraocular lens 7 from the LDb side to the LDa side (i.e., the extrusion direction), and is not limited to the shape shown in Figure 2, etc. Also, the anterior restricting portion 2b is not limited to a configuration that contacts the mounting surface 4a of the mounting member 4.

[0029] The bent portion 2c has the function of bending the base portion 2a in the HD direction. In the holder 10 shown in Figures 1 to 3, the bent portion 2c is formed as a thin-walled portion 2e (first thin-walled portion) which 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 bent portion 2c can adopt any structure as long as it has the function of bending the base portion 2a in the HD direction, and is not limited to the thin-walled portion 2e. For example, the bent portion 2c may have a structure in which the width of the bent portion 2c is narrower than the width of the base portion 2a in the WD direction. 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 where 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-walled portion 2e (first thin-walled 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. In addition, there are no particular limitations on the material such as resin, but for example, polypropylene, polyethylene, etc. are preferred.

[0030] Furthermore, at the base 2a, the contact portion 2d protrudes perpendicularly (downward) from each of the two branched ends on the LDa side toward the HDb side relative to the base 2a. In the LD direction, the contact portion 2d is located closer to LDA than the Lda-side ends of the pressing member 3 and the mounting member 4. Also, the HDb-side end of the contact portion 2d is in approximately the same position as the HDb-side end of the mounting member 4 in the HD direction. Therefore, the contact portion 2d protrudes perpendicularly from the base 2a toward the main body of the injector. Details of the function of the regulating member 2 will be described later.

[0031] In the holder 10, the lid member 1 is positioned furthest towards the HDa side. The lid member 1 is provided on the HDa side relative to the regulating member 2 and the retaining member 3. The lid member 1 has a lid body 1a, a viscoelastic substance injection part 1b, and a handle part 1c. The lid body 1a is formed in a U-shape to secure space for the regulating member 2 to bend via the bent part 2c. More specifically, the lid body 1a has a U-shape in the WD direction such that (i) on the HDa-side surface of the retaining member 3, it covers the area other than the area occupied by the lens retaining part 3b and the fitting recess 3c, and (ii) on the HDa-side surface of the regulating member 2, it covers the end area on the LDb side. In this way, the lid body 1a covers the area on the LDa side from the bent part 2c of the regulating member 2, so the bending of the regulating member 2 toward the HDa side is not locked by the lid body 1a. Viewed from the WD direction, the restricting member 2 is bendable between the HDa side and the HDb side with respect to the lid body 1a. The shape of the lid body 1a is not necessarily limited to a U-shape in the WD direction, as long as it secures space through which the restricting member 2 can bend via the bending portion 2c.

[0032] The handle portion 1c protrudes from the LDb end of the lid body 1a in the HD direction and extends in an arch shape toward the LDa side. Also, when viewed from the HDa side, the handle portion 1c is located in the center of the lid body 1a in the WD direction. Note that the handle portion 1c is not limited to the shape shown in Figure 1, etc., as long as it is shaped in a way that allows the holder 10 to be grasped via the handle portion 1c.

[0033] The injection section 1b is formed at the LDa end of the handle section 1c. The injection section 1b is a triangular pyramidal cylindrical shape that is open in the HD direction. In the holder 10, a viscoelastic substance is injected into the passage section 4e of the mounting member 4 via the injection section 1b. For this reason, the retaining member 3, which is positioned between the lid member 1 and the mounting member 4, has a communication hole 3e that connects the injection section 1b and the passage section 4e. The viscoelastic substance injected from the injection section 1b flows into the passage section 4e of the mounting member 4 through the communication hole 3e. Note that the injection section 1b only needs to have a shape that allows the injection of a viscoelastic substance, and is not necessarily limited to a triangular pyramidal cylindrical shape; it may also be a conical cylindrical shape, a quadrangular pyramidal cylindrical shape, etc.

[0034] The holder set 150 for storing intraocular lenses according to this embodiment comprises the holder 10 described above and the 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's instrument body 60 to which the holder 10 is attached. As shown in Figure 5, the instrument body 60 comprises a cylindrical portion 20, a tip 30, a plunger 40, and a plunger guide 50. The tip 30 is attached to the LDa side of the cylindrical portion 20. In the instrument body 60, the plunger guide 50 is attached to the mounting portion 34 of the tip 30. In this embodiment, the holder 10 is attached to the rectangular portion 33 (holder mounting portion) of the tip 30. In the tip 30, the holder 10 and the plunger guide 50 are arranged in this order from the LDb side to the LDa side. Thus, the injector in this embodiment includes a rectangular portion 33 to which the above-described holder 10 is attached.

[0036] The cylindrical portion 20 extends in the LD direction and is formed in a cylindrical shape. The plunger 40 is inserted into the hollow portion of the cylindrical portion 20 so as to be movable in the LD direction. The cylindrical portion 20 has a plate-shaped fixing portion 21, a plurality of annular projections 22, and a flange-shaped holding portion 23. The fixing portion 21 protrudes from the LDa-side end face of the cylindrical portion 20 toward the LDa side. The tip 30 is fixed to the fixing portion 21. The annular projections 22 are formed on the LDa-side outer surface of the cylindrical portion 20 so that the user can grip it. The holding portion 23 is formed on the LDb-side outer surface of the cylindrical portion 20. The holding portion 23 is a place for the user to place their hand. Although not shown, a through hole is provided on the LDa-side end face of the cylindrical portion 20 so as to communicate with the inside of the holder 10 attached to the instrument body 60. The plunger 40 passes through this through hole and is inserted into the holder 10. The cylindrical portion 20 is formed using a resin such as polycarbonate that has impact resistance.

[0037] The annular projection 22 and the retaining portion 23 may have any shape as long as they can perform the required functions. For example, the retaining portion 23 may be made of a projection that can be gripped with a finger, rather than being flange-shaped.

[0038] When using the injector, the user places one hand on the holder 23 and pushes in the plunger 40, while grasping the annular projection 22 with the other hand to release the intraocular lens 7 into the patient's eye. By providing the annular projection 22, it becomes easier for the user to grasp the injector, improving the operability of the injector.

[0039] The tip 30 is a component that releases the intraocular lens 7 and is attached to the fixing portion 21 of the cylindrical portion 20. The tip 30 has a release portion 31, a nozzle portion 32, a rectangular portion 33, and a mounting portion 34. The release portion 31 is formed at the LDa-side end of the tip 30. The intraocular lens 7 is released from the release portion 31. The nozzle portion 32 is connected to the LDb side of the release portion 31. The inner diameter of the nozzle portion 32 gradually decreases towards the LDa side, i.e., the release portion 31 side. The rectangular portion 33 is connected to the LDb side of the nozzle portion 32. The rectangular portion 33 has a rectangular outer circumference that opens in the HD direction. In the instrument body 60, the tip 30 is connected to the cylindrical portion 20 by engaging the rectangular portion 33 with the fixing portion 21. The configuration for engaging the tip 30 and the cylindrical portion 20 may be any configuration, such as engagement by a locking claw and a locking hole. Furthermore, the tip 30 is formed using resins such as polypropylene or polyamide, which are chemical-resistant and flexible.

[0040] The plunger 40 is an axial member that pushes the intraocular lens 7, which is set in the holder 10, towards the LDa side. The plunger 40 can be configured in any way 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 to the LDa side.

[0041] The plunger guide 50 is attached to the mounting portion 34 of the tip 30. The plunger guide 50 is attached to the tip 30 between the nozzle portion 32 and the rectangular portion 33. The plunger guide 50 is a component that guides the tip 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 tip 30.

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

[0043] The injector 100 has an extrusion mechanism for pushing the intraocular lens 7 into the eye. In the injector 100 shown in Figure 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 on the LDa-side end face of the cylindrical portion 20. The plunger 40 is inserted into the holder 10 with the relative position of the intraocular lens 7 to the LDa-side tip of the plunger 40 restricted. In the extrusion mechanism, first, when the plunger 40 is pushed in toward the LDa side from the initial position, the tip of the plunger 40 comes into contact with the posterior support portion 7c of the intraocular lens 7. As a result, the posterior support portion 7c is bent toward the lens portion 7a side. Further toward the LDa side, the plunger 40 passes through the passage portion 4e of the holder 10. Then, the plunger 40 is guided by the plunger guide 50 to the discharge section 31 with its LDa-side tip, passing through the nozzle section 32 of the tip 30 and reaching the discharge section 31. As the plunger 40 moves in this manner, the intraocular lens 7 is folded into a concave shape at the nozzle section 32 of the tip 30, and then inserted into the eye from the discharge section 31 in this concave folded state. Thus, in the injector 100, the extrusion mechanism for the intraocular lens 7 is composed of the plunger 40, the holder 10, the tip 30, and the plunger guide 50. Therefore, the holder 10 according to this embodiment is attached to the instrument body 60 and constitutes part of the extrusion mechanism that extrudes the intraocular lens 7 into the eye.

[0044] As shown in Figure 6, when the holder 10 is attached to the instrument body 60, the restricting member 2 bends when the contact portion 2d comes into contact with the tip 30. This releases the restriction on the movement of the intraocular lens 7 by the restricting member 2.

[0045] (Operation of regulating member 2) In the holder 10, the restricting member 2 restricts the movement of the intraocular lens 7 when the holder 10 is stored, but the restriction on the movement of the intraocular lens 7 is released when the holder is attached to the instrument body 60. With this configuration, when the holder 10 is stored, the movement of the intraocular lens 7 within the holder 10 is restricted by the restricting member 2, so even when the holder 10 is transported in storage, the intraocular lens 7 remains in the correct position within the holder 10. Therefore, accurate setting of the intraocular lens 7 into the injector 100 is possible. Furthermore, when the holder 10 is attached to the instrument body 60, the restriction on the movement of the intraocular lens 7 by the restricting member 2 is released, so it does not interfere with the extrusion operation of the intraocular lens 7 by the extrusion mechanism of the injector 100, and the intraocular lens 7 is in the correct position relative to the plunger 40, so the plunger 40 can properly grasp the intraocular lens 7 in the correct position and extrude it, and the intraocular lens 7 can be accurately released by the injector 100. Therefore, the holder 10, equipped with the regulating member 2, enables precise setting of the intraocular lens 7 into the injector 100, allowing the injector 100 to accurately eject the intraocular lens 7.

[0046] The following describes in detail the operation of the restricting member 2 in the storage state in which the intraocular lens 7 is stored and in the mounted state in which the holder 10 is attached to the instrument body 60. Figure 7 is a perspective view illustrating the operation of the restricting member 2 in the storage state and in the mounted state. Note that, in order to explain the operation of the restricting member 2, the lid member 1 and the retaining member 3 of the holder 10 are omitted in Figure 7.

[0047] As shown in Figure 7, in the storage state, the anterior restricting portion 2b protrudes from the base portion 2a toward the HDb side and contacts the mounting surface of the intraocular lens 7. The anterior restricting portion 2b is located between the anterior support portion 7b and the lens portion 7a on the intraocular lens 7 mounted on the mounting member 4. Therefore, when transporting the holder 10 in the storage state, even if the intraocular lens 7 moves toward the LDa side from the correct position, the movement is limited to the anterior restricting portion 2b. In other words, in the storage state, the anterior restricting portion 2b restricts the movement of the intraocular lens 7 from the LDb side toward the LDa side (i.e., the extrusion direction).

[0048] As shown in Figure 7, the tip 30 has a contact area 30d to which the contact portion 2d of the regulating member 2 abuts. When the holder 10 is attached to the tip 30, the contact portion 2d of the regulating member 2 abuts against the contact area 30d of the tip 30 from the HDa side. As the contact portion 2d abuts against the contact area 30d, the bent portion 2c (thin portion 2e) bends in the HD direction, that is, towards the HDa side in the thickness direction of the intraocular lens 7. This bending of the bent portion 2c pushes the anterior regulating portion 2b upward in the HD direction, that is, towards the HDa side in the thickness direction of the intraocular lens 7. As a result, the contact of the anterior regulating portion 2b with the mounting surface 4a of the intraocular lens 7 is released, and a gap is created between the anterior regulating portion 2b and the intraocular lens 7. Through this gap, the intraocular lens 7 becomes movable toward the LDa side relative to the anterior regulating portion 2b. In other words, when worn, the bending of the bending portion 2c pushes up the anterior restricting portion 2b, releasing the restriction on the movement of the intraocular lens 7 in the extrusion direction. The anterior restricting portion 2b only needs to have the function of restricting movement of the intraocular lens 7 from the LDb side to the LDa side (i.e., the extrusion direction), and is not limited to the shape shown in Figure 2, etc. Furthermore, the anterior restricting portion 2b is not limited to a configuration that abuts against the mounting surface 4a of the mounting member 4.

[0049] Thus, in the holder 10 according to this embodiment, the restricting member 2 has a forward restricting portion 2b that restricts movement of the intraocular lens 7 in the extrusion direction, a contact portion 2d that contacts the tip tip 30 when attached to the instrument body (specifically the tip tip 30), and a bending portion 2c that bends in the thickness direction of the intraocular lens 7 as the contact portion 2d contacts the instrument body, pushing up the forward restricting portion 2b in that thickness direction. When the holder 10 is attached, the restriction on the movement of the intraocular lens 7 in the extrusion direction is released by the bending portion 2c pushing up the forward restricting portion 2b. Therefore, a simpler structure allows for accurate setting of the intraocular lens 7 into the injector, and the intraocular lens 7 can be accurately ejected by the injector.

[0050] Here, the contact portion 2d is formed to be thicker than the bent portion 2c. More specifically, as shown in Figure 7, the contact portion 2d has a groove shape that is recessed towards the LDb side and extends in the HD direction. The thickness of at least the bottom of this groove shape is greater than the thickness of the bent portion 2c. As a result, when the regulating member 2 is bent due to the contact of the contact portion 2d with the tip 30, the contact portion 2d does not deform due to the bending. Therefore, the regulating member 2 can be bent stably. Note that the contact portion 2d only needs to be configured so that it does not deform when the regulating member 2 is bent due to the contact of the contact portion 2d with the tip 30, and is not necessarily limited to being formed to be thicker than the bent portion 2c. More specifically, the thickness of the contact 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 where 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] Here, as shown in Figure 7, the holder 10 is provided with a fixed end 5 relative to the restricting member 2 in order to stably realize the bending operation of the restricting member 2 described above. When the restricting member 2 is bent, the contact portion 2d, which is the free end, moves freely in the HD direction, while the fixed end 5 is fixed. The fixed end 5 is provided at the base portion 2a of the restricting member 2 on the LDb side relative to the bending portion 2c, that is, on the side opposite to the contact portion 2d relative to the bending portion 2c.

[0052] Figure 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 Figure 8, the lid body 1a covers the end region on the LDb side on the HDa side surface of the regulating member 2.

[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 that covers the LDb-side end region of the restricting member 2. The protrusion 5a is in contact with the restricting member 2. The contact point of the protrusion 5a is on the HDa-side surface of the restricting member 2, on the LDb side relative to the bent portion 2c, that is, on the opposite side of the contact portion 2d relative to the bent portion 2c. At the contact point between the restricting member 2 and the protrusion 5a, the movement of the restricting member 2 in the HD direction due to bending is locked. In the holder 10 according to this embodiment, the contact between the protrusion 5a and the restricting member 2 constitutes a fixed end 5 for the bending movement of the restricting member 2. By configuring the fixed end 5 in this way, the bending movement of the restricting member 2 can be stabilized.

[0054] Furthermore, as shown in Figures 7 and 8, locking portions 5b are formed on the regulating member 2 as components of the fixed end 5. As shown in Figure 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 such that the convex portions 5a fit between two 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 point of contact 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 due to bending. As a result of the positioning by the locking portions 5b, the position of the convex portions 5a does not shift with respect to the bending of the regulating member 2, and the fixed end 5 becomes even more stable, thus further stabilizing the bending operation of the regulating member 2.

[0055] (Folded 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 constructed and connected to each other via a hinge. That is, these members are constructed as a single, inseparable unit. 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. By constructing the holder 10 as a single unit in this way, the number of assembly errors in the holder 10 can be reduced when assembling the holder 10 by combining its various components.

[0056] Figures 9 and 10 are perspective views showing the unfolded state of the holder 10 according to this embodiment before assembly. Figure 9 is a perspective view with the HDb-side surface 3R of the retaining member 3 facing upward, and Figure 10 is a perspective view with the HDa-side surface 3S of the retaining member 3 facing upward. In Figures 9 and 10, the HDa-side surfaces of the lid member 1, regulating member 2, retaining member 3, and 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 Figures 9 and 10, the retaining member 3 has a roughly rectangular plate shape. In the unfolded state before assembly of the holder 10, the lid member 1, the restricting member 2, and the mounting member 4 are connected to each side of the rectangle of the retaining member 3 via hinges 6a to 6c. Specifically, of the four sides of the rectangle of the retaining member 3, the lid member 1 is connected to one of the two sides extending in the LD direction via hinge 6a, and the mounting member 4 is connected to the other side via hinge 6b. Furthermore, of the four sides of the rectangle of the retaining member 3, the restricting member 2 is connected to the side on the LDb side of the two sides extending in the WD direction via hinge 6c. In addition, 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 are facing the same direction as the surface 3R of the retaining member 3. In other words, the surface 1R of the lid member 1, the surface 2R of the regulating member 2, and the surface 4R of the mounting member 4 are all facing the same direction as the surface 3S of the pressing member 3.

[0058] Furthermore, to facilitate the folding of the various components, each hinge portion 6a to 6c has a thin-walled portion 6d (second thin-walled portion). These thin-walled portions 6d are thinner than at least the lid member 1, the restricting member 2, the pressing member 3, and the mounting member 4. The thickness of the hinge portions 6a to 6c is not particularly limited as long as it is a thickness that facilitates the folding of the various components, but specifically, the thickness of the thin-walled portion 6d (second thin-walled 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 assembly procedure for the holder 10 (intraocular lens storage holder set 150) in which the intraocular lens 7 is stored will be described. Figure 11 is a perspective view showing the intraocular lens storage holder set in the process of assembly.

[0060] In this assembly procedure, the holder 10 is assembled in the following steps (a) to (d): (a) The restricting member 2 is folded over the retaining member 3 via the hinge portion 6c so that surface 3S and surface 2R overlap. At this time, the restricting member 2 fits into the fitting recess 3c of the retaining member 3. (b) The lid member 1 is folded over the folded bodies of the restricting member 2 and retaining member 3 via the hinge portion 6a so that surfaces 2S and 3S and surface 1R overlap. (c) The intraocular lens 7 is set on the mounting member 4. After performing steps (a) to (c), the holder 10 will have the configuration shown in Figure 11. Then, (d) From the configuration shown in Figure 11, the folded bodies of the lid member 1, restricting member 2 and retaining member 3 are folded over the mounting member 4 on which the intraocular lens 7 is set via the hinge portion 6b so that surface 3R and surface 4S overlap. By performing steps (a) to (d), a holder 10 in which the intraocular lens 7 is stored, i.e., an intraocular lens storage holder set 150, is completed.

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

[0062] (Intraocular lens storage kit) The holder in which the intraocular lens is stored (hereinafter sometimes referred to as the intraocular lens storage holder set 150) is attached to the main body of the injector instrument for inserting the intraocular lens into the eye, and is stored in a storage container containing a storage solution (for example, physiological saline) when in storage. The intraocular lens storage set according to this embodiment comprises the intraocular lens storage holder set 150 and a storage container for storing the holder set in the storage solution. When in storage, the intraocular lens is stored in the form of the intraocular lens storage set.

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

[0064] As shown in Figure 12, the intraocular lens storage set 200 comprises a 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 storage solution. In the configuration of the intraocular lens storage set 200, the storage container 110 is filled with storage solution and its top surface is sealed with a lid such as a seal.

[0065] Furthermore, as shown in Figure 13, the storage container 110 includes a bottom portion 111 and fixing portions 112 to 114. The bottom portion 111 has a shape that fits the HDb-side end face of the holder 10. As a result, when the holder 10 containing the intraocular lens is set in the storage container 110, the regulating member 2 contacts the bottom portion 111, and the contact of the anterior regulating portion 2b with respect to the mounting surface 4a of the intraocular lens 7 is not released, so the intraocular lens 7 does not move toward the LDa side. Specifically, the bottom portion 111 has two contact portion fitting regions 111a and a mounting member fitting region 111b. The two contact portion fitting regions 111a each have a concave shape that fits the shape of the HDb-side end face of the contact portion of the regulating member in the holder 10. The mounting member fitting region 111b has a concave shape that fits the shape of the HDb-side end face of the mounting member in the holder 10. The contact area 111a and the mounting member area 111b prevent the holder 10 containing the intraocular lens from moving in the LD direction within the storage container 110 after it has been placed in the storage container 110.

[0066] The fixing parts 112 to 114 are for fixing the holder 10 in which the intraocular lens is stored. In the storage container 110, the fixing parts 112 and 113 (first fixing parts) protrude from one of the two opposing inner surfaces in the WD direction, and the fixing part 114 (second fixing part) protrudes from the other inner surface. The fixing parts 112 to 114 are convex ridges extending in the HD direction. In the WD direction, the distance between the fixing parts 112 and 113 and the fixing part 114 is the same as or slightly smaller than the width of the holder 10 in the WD direction. Specifically, this distance is the same as the width of the holder 10 in the WD direction, or 2% to 10% of that width, preferably 3%. Therefore, when the holder 10 in which the intraocular lens is stored is set in the storage container 110, the fixing parts 112 to 114 each abut against the side surface of the holder 10 in the WD direction. This contact creates an inward force from the fixing parts 112-114 to the holder 10, and this force prevents the holder 10 from moving in the HD direction. As a result, the holder 10 containing the intraocular lens does not float in the storage solution within the storage container 110, but remains in the correct position within the storage container 110.

[0067] Furthermore, the inner surface of the storage container 110 has two inclined surfaces 115 and 116 that face each other. On the inner surface of the storage container 110, 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 as you move from the HDa side to 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 formation of the inclined surfaces 115 and 116 in this way makes it easier to insert your fingers when removing the holder 10 containing the intraocular lens from the storage container 110, thus facilitating the 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 for inserting an intraocular lens into the eye using a holder 10 according to this embodiment. Therefore, the insertion system includes at least an intraocular lens 7, a holder 10, and an instrument body 60 of an injector 100 as its components. That is, the intraocular lens insertion system according to this embodiment comprises an instrument body 60 of an injector 100 (see Figures 5 and 6), an intraocular lens holder 10 for storing the intraocular lens 7 (see Figures 1 to 3), and an intraocular lens 7 stored in the holder 10, and the injector 100 is a system having an extrusion mechanism for pushing the intraocular lens 7 into the eye. In the intraocular lens insertion system according to this embodiment, the holder 10 is attached to the instrument body 60 and constitutes part of the extrusion mechanism, and is equipped with a restricting member 2 that restricts the movement of the intraocular lens 7 in the storage state in which the intraocular lens 7 is stored, while the restriction on the movement of the intraocular lens 7 is released when it is attached to the instrument body 60. The details of the configuration of the holder 10, the instrument body 60, and the intraocular lens 7 in the intraocular lens insertion system according to this embodiment, as well as the details of the extrusion mechanism of the intraocular lens 7, are as described above and will therefore not be explained further.

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

[0071] In other words, the kit product according to this embodiment comprises the above-mentioned intraocular lens storage set and the instrument body 60 of the injector 100. By providing such a kit product, users 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 intraocular lens storage. Furthermore, accurate setting of the intraocular lens 7 into the injector 100 is possible, and an intraocular lens 7 insertion system that can accurately release the intraocular lens 7 by the injector 100 can be realized more effectively.

[0072] [Embodiment 2] Other embodiments of the present invention will be described below. For the sake of convenience of explanation, components having the same function as those described in the above embodiments will be denoted by the same reference numerals, and their descriptions will not be repeated. Figure 14 is a perspective view showing the holder 10A (holder set 150A for intraocular lens storage) in the storage state in which the intraocular lens 7 is stored during assembly 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 that of the lens retaining portion 3a of the holder 10 according to Embodiment 1. In the holder 10 according to Embodiment 1 shown in Figure 11, the dimensions of the lens retaining portion 3a in the HD direction were substantially constant in the LD direction. On the other hand, in the holder 10A, the dimensions of the lens retaining portion 3f in the HD direction are not substantially constant in the LD direction, and it 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 folding bodies of the lid member 1, regulating member 2 and retaining member 3 are folded relative to the mounting member 4 on which the intraocular lens is set, the high portion 3g is positioned directly above the lens portion of the intraocular lens. The dimensions of the high portion 3g in the HD direction are designed so that the intraocular lens installed on the mounting member 4 does not move more than necessary towards the HDa side. Furthermore, the lower part 3h prevents the folded intraocular lens and the lens retaining part 3f from coming into contact more than necessary when the intraocular lens is pushed into the eye.

[0074] Next, in the holder 10A according to this embodiment, the structure of the lens retaining portion 3i differs from that of the lens retaining portion 3b of the holder 10 according to Embodiment 1. In the holder 10 shown in Figure 11, of the two protrusions that make up the lens retaining portion 3b and extend in the LD direction, the protrusion closest to the hinge portion 6b (hereinafter referred to as protrusion A) had a dimension in the HD direction that was approximately constant in the LD direction. On the other hand, in the holder 10A, the dimension of protrusion A in the HD direction is not approximately constant in the LD direction, and an inclined portion 3j is formed on the LDb side. The inclined portion 3j is formed such that the dimension in the HD direction increases from the LDb side end of protrusion A toward the LDa side. The inclined portion 3j prevents the posterior support portion of the intraocular lens from catching on protrusion A when the posterior support portion of the intraocular lens 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 Embodiment 1. Specifically, in the holder 10A according to this embodiment, a notch 4f is formed in the inner wall closer to the hinge portion 6b, of the two inner walls that constitute the passage portion 4e of the mounting member 4. The notch 4f is formed on the HDa side portion and at the LDb end portion of the inner wall of the passage portion 4e. The notch 4f prevents interference between the mounting member 4 and the folded body of the lid member 1, regulating member 2, and retaining member 3 when the folded body is folded relative to the mounting member 4 on which the intraocular lens is set.

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

[0077] 〔summary〕 The holder 10 for an intraocular lens according to Embodiment 1 of the present invention is attached to the instrument body 60 of an injector 100 and constitutes part of an extrusion mechanism for extruding an intraocular lens 7 into the eye, and is 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 stored, while the restriction on the movement of the intraocular lens 7 is released when it is attached to the instrument body 60.

[0078] With the above configuration, in the storage state, the movement of the intraocular lens 7 within the holder 10 is restricted by the restricting member 2. Therefore, even when transporting the holder 10 in the storage state, the intraocular lens 7 remains in the correct position within the holder 10. Thus, accurate setting of the intraocular lens 7 into the injector 100 is possible. Furthermore, with the above configuration, when the holder 10 is attached to the instrument body 60, the restriction on the movement of the intraocular lens 7 by the restricting member 2 is released, so it does not interfere with the ejection operation of the intraocular lens 7 by the ejection mechanism of the injector 100. Thus, because the holder 10 is equipped with the restricting member 2, accurate setting of the intraocular lens 7 into the injector 100 is possible, and the intraocular lens 7 can be accurately ejected by the injector 100.

[0079] The holder 10 for an intraocular lens according to aspect 2 of the present invention, in aspect 1, has a forward restricting portion 2b that restricts the movement of the intraocular lens 7 in the extrusion direction (direction from LDb side to LDa side), a contact portion 2d that abuts against the instrument body 60 when mounted on the instrument body 60, and a bending portion 2c that bends in the thickness direction (HD direction) of the intraocular lens 7 as the contact portion 2d abuts against the instrument body 60, pushing up the forward restricting portion 2b in that thickness direction, and in the mounted state, the restriction on the movement of the intraocular lens 7 in the extrusion direction is released by the bending portion 2c pushing up the forward restricting portion 2b. This allows for accurate setting of the intraocular lens 7 into the injector with a simpler structure, and enables accurate ejection of the intraocular lens 7 by the injector.

[0080] The holder 10 for an intraocular lens according to embodiment 3 of the present invention, in embodiment 1 or 2, has a base 2a on which the forward restricting portion 2b, the contact portion 2d, and the bending portion 2c are formed, and in the storage state, the base 2a extends in the extrusion direction, the forward restricting portion 2b protrudes toward the intraocular lens 7 perpendicular to the base 2a, and the contact portion 2d protrudes toward the instrument body 60 perpendicular to the base 2a. This makes it possible to restrict the movement of the intraocular lens 7 by the restricting member 2 and to release the restriction of the movement of the intraocular lens 7 when the restricting member 2 is bent, with a simple structure.

[0081] In the holder 10 for an intraocular lens according to embodiment 4 of the present invention, in embodiment 2 or 3, the bent portion 2c is configured to be a thin-walled portion 2e (first thin-walled portion) that is thinner than the base portion 2a. This makes the regulating member 2 easier to bend via the bent portion 2c.

[0082] In the holder 10 for an intraocular lens according to aspect 5 of the present invention, in any of aspects 2 to 4, the contact portion 2d is formed to be thicker than the bent portion 2c. As a result, when the regulating member 2 is bent due to the contact of the contact portion 2d with the tip 30, the contact portion 2d does not deform due to the bending.

[0083] The holder 10 for an intraocular lens according to embodiment 6 of the present invention has a cover member 1 that covers the restricting member 2 in any of embodiments 1 to 5, the cover member 1 has a cover body 1a, the cover body 1a has a protrusion 5a that abuts against the restricting member 2, and the contact between the protrusion 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] In the holder 10 for an intraocular lens according to aspect 7 of the present invention, in aspect 6, the lid body 1a is formed in a U-shape (WD direction) so as to secure a space for the regulating member 2 to bend via the bent portion 2c. This makes it possible to secure a space for the regulating member 2 to bend.

[0085] The holder 10 for an intraocular lens according to embodiment 8 of the present invention comprises, in any of embodiments 1 to 7, a mounting member 4 having a mounting surface 4a on which the intraocular lens 7 is mounted, a pressing member 3 that covers the mounting member 4 and restricts the movement of the intraocular lens 7 in the thickness direction together with the mounting member 4, and a lid member 1 having a lid body 1a that covers the restricting member 2, wherein the restricting member 2 is positioned between the pressing member 3 and the lid member 1. This configuration enables accurate setting of the intraocular lens 7 into the injector and realizes a holder 10 that can accurately eject the intraocular lens 7 by the injector.

[0086] In the holder 10 for an intraocular lens according to aspect 9 of the present invention, in aspect 8, the mounting member 4, the pressing member 3, the restricting member 2, and the lid member 1 are integrally formed and connected to each other via hinge portions 6a, 6b, and 6c, and the mounting member 4, the pressing member 3, the restricting member 2, and the lid member 1 are assembled by folding them via the hinge portions 6a, 6b, and 6c. By configuring the holder 10 as an integral object in this way, the number of assembly errors in the holder 10 can be reduced when assembling the holder 10 by combining the various components of the holder 10.

[0087] The holder 10 for an intraocular lens according to aspect 10 of the present invention, in aspect 9, has a configuration in which the hinge portions 6a to 6c have a thin-walled portion 6d (second thin-walled portion) that is thinner than the previously described mounting member 4, the pressing member 3, the regulating member 2, and the lid member 1. This makes it easier to fold the various components.

[0088] The holder set 150 for storing intraocular lenses according to aspect 11 of the present invention comprises a holder 10 for an intraocular lens according to any of aspects 1 to 10, and an intraocular lens 7 stored in the holder 10. This enables accurate setting of the intraocular lens 7 into the injector, and realizes an intraocular lens storage holder set 150 that can accurately release the intraocular lens 7 by the injector.

[0089] The intraocular lens storage set 200 according to aspect 12 of the present invention comprises an intraocular lens storage holder set 150 according to aspect 11 and a storage container 110 for storing the holder set in a storage solution. This enables accurate setting of the intraocular lens 7 into the injector and realizes an intraocular lens storage set that can accurately release the intraocular lens 7 by the injector.

[0090] In the intraocular lens storage set 200 according to aspect 13 of the present invention, in aspect 12, the storage container 110 has fixing parts 112 to 114 for fixing the holder set. As a result, the holder set (holder 10 in which the intraocular lens is stored) does not float in the storage solution within the storage container 110 and remains in the correct position within the storage container 110.

[0091] An 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 an injector 100 and constitutes part of an extrusion mechanism for extruding an intraocular lens 7 into the eye, and is for storing the intraocular lens 7, comprising: 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 the movement of the intraocular lens 7 in the thickness direction; a restricting member 2 that restricts the movement of the intraocular lens 7 when the intraocular lens 7 is stored, but the restriction on the movement of the intraocular lens 7 is released when it is attached to the instrument body 60; and a lid member 1 that covers the restricting member 2, and comprises the following (1) to (3); (1) The restricting member 2 has a base portion 2a extending in the extrusion direction of the intraocular lens 7 (direction from LDb side to LDa side), a front restricting portion 2b extending perpendicularly to the base portion 2a in the storage state and restricting movement of the intraocular lens 7 in the extrusion direction, a contact portion 2d extending perpendicularly to the base portion 2a in the storage state and contacting the instrument body 60 when mounted on the instrument body 60, and a thickness greater than the base portion 2a The device has a thin-walled portion 2e (first thin-walled portion) with a small thickness, and a bending portion 2c that bends in the thickness direction (HD direction) of the intraocular lens 7 as the contact portion 2d comes into contact with the device body 60, and pushes up the forward restricting portion 2b in that thickness direction, wherein the contact portion 2d is formed to be thicker than the bending portion 2c, and in the fitted state, the restriction on the movement of the intraocular lens 7 in the extrusion direction is released by the pushing up of the forward restricting portion 2b by the bending portion 2c. (2) The lid member 1 has a lid body 1a formed in a U shape so as to secure a space for the restricting member 2 to bend via the bent portion 2c, the lid body 1a has a protrusion 5a that abuts against the restricting member 2, and the contact between the protrusion 5a and the restricting member 2 constitutes a fixed end 5 for the bending movement of the restricting member 2. (3) The restricting member 2 is positioned between the pressing member 3 and the lid member 1. The mounting member 4, the pressing member 3, the restricting member 2, and the lid member 1 are integrally formed and connected to each other via hinge portions 6a to 6c. The mounting member 4, the pressing member 3, the restricting member 2, and the lid member 1 are folded together via the hinge portions 6a to 6c to form an assembly.

[0092] According to the above configuration, precise setting of the intraocular lens 7 into the injector 100 is possible, and the injector 100 enables precise ejection of the intraocular lens 7.

[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 an intraocular lens 7 stored in the holder 10, wherein the injector 100 is an intraocular lens insertion system having an extrusion mechanism for pushing the intraocular lens 7 into the eye, and the holder 10 is attached to the instrument body 60 and constitutes part of the extrusion mechanism, and includes a restricting member 2 that restricts the movement of the intraocular lens 7 in a storage state, while the restriction on the movement of the intraocular lens 7 is released when it is attached to the instrument body 60. This configuration enables accurate setting of the intraocular lens 7 in the injector 100 and realizes an intraocular lens insertion system in which the intraocular lens 7 can be accurately ejected by the injector 100.

[0094] The kit product according to aspect 16 of the present invention comprises an intraocular lens storage set 200 according to aspect 12 or 13 and an instrument body 60 of an injector 100. By providing such a kit product, users 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 intraocular lens storage. Furthermore, accurate setting of the intraocular lens 7 into the injector 100 is possible, and an intraocular lens insertion system that can accurately release the intraocular lens 7 by the injector 100 can be realized more effectively.

[0095] The injector 100 according to aspect 17 of the present invention is configured to include a holder mounting section (rectangular section 33) for attaching a holder 10 for an intraocular lens according to any of aspects 1 to 10. This enables precise setting of the holder 10 on the injector 100, and realizes an intraocular lens injector 100 that can accurately eject the intraocular lens 7.

[0096] The storage container 110 according to aspect 18 of the present invention is a storage container 110 for storing the holder set for storing intraocular lenses of aspect 11 in a storage solution, and is configured to have a bottom portion 111 having a shape that fits the lower end face of the holder 10. As a result, when the holder 10 in which the intraocular lenses are stored is set into the storage container 110, the regulating member 2 contacts the bottom portion 111, and the contact of the front regulating portion 2b with respect to the mounting surface 4a of the intraocular lens 7 is not released, so the intraocular lens 7 does not move toward the LDa side.

[0097] The storage container 110 according to aspect 19 of the present invention has fixing parts 112 to 114 for fixing the holder 10 in aspect 18, and the fixing parts 112 to 114 are a first fixing part (fixing part 112, 113) which is a protrusion that protrudes from one of the two inner surfaces of the holder 10 that are opposite in the width direction (WD direction) and extends in the vertical direction (HD direction), and a protrusion that protrudes from the other inner surface of the two inner surfaces and extends in the vertical direction (HD direction) The holder 10 is equipped with a second fixing part (fixing part 114), and the first and second fixing parts abut against the side surface of the holder 10 in the width direction (WD direction). The distance between the first and second fixing parts is the same as or smaller than the width of the holder 10, so that an inward force acts from the first and second fixing parts to the holder 10 as the first and second fixing parts abut against the side surface of the holder 10 in the width direction (WD direction). As a result, the holder 10 in which the intraocular lens is stored does not float in the storage solution and remains in the correct position within the storage container 110.

[0098] The storage container 110 according to embodiment 20 of the present invention, in embodiment 18 or 19, has two inclined surfaces 115 and 116 facing each other on the inner surface of the storage container 110, the two inclined surfaces 115 and 116 facing each other in the width direction (WD direction) of the holder 10, and 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. With the inclined surfaces 115 and 116 formed in this way, it is easier to insert a finger when removing the holder 10 in which the intraocular lens is stored from the storage container 110, thus making it easier to remove the holder 10. [Explanation of Symbols]

[0099] 1. Lid member 1a Lid body 1b Injection part 1c hand part 2 Regulating members 2a base 2b Front restriction part 2c Bend part 2d contact part 2e Thin-walled section (first thin-walled section) 3. Retaining member 3b, 3i Lens retaining part 3c Fitting recess 3d through hole 3e Communication hole 3j Slope 4 Mounting member 4a Mounting surface 5 Fixed end 5a Convex part 6a, 6b, 6c Hinge section 6d Thin wall part (2nd thin wall part) 7. Intraocular lens 10 holders 30 tip tips 30d contact area 60 Main unit of the device 100 Injectors 110 Storage containers 112, 113, 114 Fixed part 150 Intraocular Lens Storage Holder Set 200 Intraocular Lens Storage Set

Claims

1. An injector equipped with a holder mounting section for attaching an intraocular lens holder, The holder for the intraocular lens is, It is attached to the main body of the injector instrument and forms part of the extrusion mechanism that pushes the intraocular lens into the eye, and is also an intraocular lens holder for storing the intraocular lens. An intraocular lens holder comprising a restricting member that restricts the movement of the intraocular lens when the intraocular lens is stored, while releasing the restriction on the movement of the intraocular lens when it is attached to the main body of the device, The aforementioned restraining member is An anterior restricting portion that restricts movement in the extrusion direction relative to the intraocular lens, A contact portion that contacts the main body of the device when it is attached to the main body of the device, The contact portion has a bending portion that bends in the thickness direction of the intraocular lens as it comes into contact with the main body of the instrument, and which pushes up the forward restricting portion in that thickness direction, In the aforementioned fitted state, the restriction on the movement of the intraocular lens in the extrusion direction is released by the upward pushing of the anterior restricting portion by the bending portion.

2. The injector according to claim 1, wherein the instrument body of the injector is equipped with a tip.

3. The injector according to claim 2, wherein the tip has a contact area that, in the fitted state, contacts the contact portion of the regulating member, causing the bent portion of the regulating member to bend in the thickness direction of the intraocular lens, and pushing up the anterior regulating portion in the thickness direction.

4. A storage container for storing an intraocular lens holder set in a storage solution, The holder is provided with a bottom portion having a shape that fits the lower end face of the holder, The holder set for storing intraocular lenses comprises an intraocular lens holder and an intraocular lens stored in the holder. The holder for the intraocular lens is, An intraocular lens holder that is attached to the main body of an injector instrument and constitutes part of the extrusion mechanism for pushing the intraocular lens into the eye, and for storing the intraocular lens, An intraocular lens holder comprising a restricting member that restricts the movement of the intraocular lens when the intraocular lens is stored, while releasing the restriction on the movement of the intraocular lens when it is attached to the main body of the device, The aforementioned restraining member is An anterior restricting portion that restricts movement in the extrusion direction relative to the intraocular lens, A contact portion that contacts the main body of the device when it is attached to the main body of the device, The contact portion has a bending portion that bends in the thickness direction of the intraocular lens as it comes into contact with the main body of the instrument, and which pushes up the forward restricting portion in that thickness direction, A storage container in which, in the aforementioned fitted state, the restriction on the movement of the intraocular lens in the extrusion direction is released by the upward pushing of the anterior restricting portion by the bending portion.

5. It has a fixing part for fixing the holder set, The fixing portion comprises a first fixing portion which is a protrusion extending vertically from one of the two inner surfaces of the holder that are opposite each other in the width direction, and a second fixing portion which is a protrusion extending vertically from the other inner surface of the two inner surfaces, The first and second fixing parts abut against the side surfaces of the holder in the width direction, The storage container according to claim 4, wherein the distance between the first and second fixing parts is the same as or smaller than the width of the holder, such that the first and second fixing parts abut against the side surface of the holder in the width direction, thereby acting an inward force on the holder from the first and second fixing parts.

6. The inner surface of the storage container has two inclined surfaces that face each other. The two inclined surfaces are opposite each other in the width direction of the holder, and are formed such that the distance between them gradually increases from the top to the bottom. The storage container according to claim 4 or 5, wherein the smallest distance between the two inclined surfaces is the same as the width of the holder.

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