JP6364768B2 - Intraocular lens insertion system - Google Patents

Description

  The present invention relates to an intraocular lens insertion system for inserting a spectacle lens into an eye.

  There is known an intraocular lens insertion system in which a manufactured intraocular lens insertion device is accommodated in a package and delivered to a user. For example, in the intraocular lens insertion system disclosed in Patent Document 1, the intraocular lens insertion device is accommodated in a plastic package in which a cavity having the shape of the intraocular lens insertion device is molded, and the plastic package is sealed with a flexible lid sheet. ing.

Special table 2007-503872 gazette

  However, the intraocular lens insertion system of Patent Document 1 does not set (fill) the intraocular lens into the intraocular lens insertion device in a state where the intraocular lens insertion device is housed in the case. When manufacturing an intraocular lens insertion system, in order to fill a small intraocular lens into an intraocular lens insertion device or a set member that can be attached to and detached from the intraocular lens insertion device, the intraocular lens insertion device or the set member is stably fixed. A jig is needed. Moreover, the operation | work which moves the intraocular lens insertion instrument or set member filled with the intraocular lens from a jig | tool to a case arises.

  As described above, in order to manufacture an intraocular lens insertion system filled with an intraocular lens, it is necessary to go through a jig and a plurality of processes at the time of manufacturing, and there is a concern that the manufacturing cost of the intraocular lens insertion system increases. It was. Further, when a jig for fixing the intraocular lens insertion device is not used, there is a concern that an operation error is likely to occur when the intraocular lens is set in the intraocular lens insertion device.

  An object of the present invention is to provide an inexpensive intraocular lens insertion system that can be easily assembled.

In order to solve the above problems, the present invention is characterized by having the following configuration.
(1) An intraocular lens insertion system having an intraocular lens insertion device having a set member on which an intraocular lens is set, and a case for accommodating the intraocular lens insertion device, wherein the set member is When the intraocular lens insertion device is rotatably connected to the main body by a hinge mechanism to be open or closed with respect to the main body of the intraocular lens insertion device, and the intraocular lens insertion device is housed in the case In addition, a restriction member is provided in the case for restricting the amount of rotation of the set member in the opening direction in an open state with respect to the main body in order to set the intraocular lens, and the set member attaches the intraocular lens to the case. has a set surface to set this to the set member in the set surface and rotational position and the bottom surface are substantially parallel in the case of the setting member in an open position is in contact with said regulating member Accordingly, the amount of rotation of the opening direction of the setting member is restricted, and wherein the.

  According to the present invention, an inexpensive intraocular lens insertion system that can be easily assembled can be provided.

1 is a schematic external view of an intraocular lens insertion system. It is a block diagram of an intraocular lens insertion system. It is the external appearance schematic diagram of the intraocular lens insertion instrument. It is a schematic external view of an extrusion means. It is an outline outline figure showing displacement of a set member. It is explanatory drawing which shows operation | movement of a cancellation | release member. It is the external appearance schematic which the displacement of the set member was controlled by the control member. It is explanatory drawing of the process of setting an intraocular lens. It is the external appearance schematic diagram of the intraocular lens insertion instrument. It is explanatory drawing which shows accommodation of the intraocular lens insertion instrument. It is explanatory drawing which latches a set member to a case.

<First Embodiment>
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
1. Overall Configuration As shown in FIG. 1, an intraocular lens insertion system 1A includes a preset type intraocular lens insertion device 2A that is prefilled with an intraocular lens 80 (see FIGS. 6 and 8), an intraocular lens insertion device, An intraocular lens insertion device housing case 3 (hereinafter referred to as case 3) for housing the inner lens insertion device 2A and a flexible sheet (not shown) are provided.

  In the following description of the intraocular lens insertion device 2A, the direction in which the intraocular lens 80 is pushed out is referred to as an extrusion axis A, and the intraocular lens 80 is ejected from the intraocular lens insertion device 2A by the pushing out of the pushing means 30 described later. The direction to be referred to as the distal end side or the distal end direction, and the direction opposite to the distal end side with respect to the extrusion axis A is referred to as the proximal end side or the proximal end direction.

In addition, the intraocular lens insertion device that can be accommodated in the case 3 of the present embodiment is not limited to the preset type intraocular lens insertion device 2A, but a non-preset type intraocular lens in which the intraocular lens 80 is set at a use site or the like. Various shapes of intraocular lens insertion instruments such as the insertion instrument 2B (details will be described later) can be accommodated (details will be described later).
(1) Intraocular lens insertion device / preset type

  The intraocular lens insertion device 2A of this embodiment will be described. The intraocular lens insertion device 2A of the present embodiment is a preset type intraocular lens insertion device 2A in which the intraocular lens 80 is set at the time of manufacture. By setting the intraocular lens 80 at the time of manufacture, the work of setting the intraocular lens 80 at the site of use becomes unnecessary, and the intraocular lens 80 can be quickly inserted into the eye at the site of use. The intraocular lens insertion device 2A may be formed by molding using a resin material, cutting by cutting out a resin, or the like.

The intraocular lens insertion device 2 </ b> A according to the present embodiment includes a cylindrical insertion device main body 10 and a rod-like extrusion means 30. The insertion instrument body 10 includes a body portion 11, a body overhang portion 12, a placement portion 13, a set member 14, a release member 15, and an insertion portion 16. In addition, the intraocular lens 80 used for the intraocular lens insertion device 2A of the present embodiment is a flexible intraocular lens that can be folded.
(1-1) Insert instrument body

  The cylindrical insertion instrument body 10 has a hollow portion connected from the proximal end to the distal end. The main body 11 includes a main body overhang 12 on the outer surface. The main body overhanging portion 12 forms a wing-like member 18 (18a, 18b) extending from the left and right outer surfaces of the main body portion 11 in the direction perpendicular to the extrusion axis A of the intraocular lens insertion device 2A. The main body overhanging portion 12 is used as a place where an operator's finger is hooked when the intraocular lens 80 is inserted. The placing portion 13 is connected in the distal direction of the main body portion 11. The placement unit 13 is a position where the intraocular lens 80 is disposed immediately before the intraocular lens 80 is pushed out by the pushing means 30. The set member 14 is connected above the placement portion 13. The set member 14 holds the intraocular lens 80 off the axis of the extrusion axis A.

  The set member 14 is a plate-like member having a plurality of holes, and a base surface 19 on which the release member 15 is mounted when the intraocular lens insertion system 1A is completed, and a set surface 20 that fills the intraocular lens 80. And have. The base surface 19 is formed with a flat surface without unevenness, and the set surface 20 is formed with a plurality of protrusion shapes (see FIG. 6). The setting surface 20 includes a placement surface 21 on which the intraocular lens 80 is placed when the intraocular lens 80 is set, and a plurality of holding portions 22 (22a, 22) that hold the intraocular lens 80 placed on the placement surface 21. 22b), a plurality of locking portions 17 (17a to 17f) for locking the set member 14 to the placement portion 13, and a contact area between the set member 14 and the regulating member 63 of the case 3 A pair of contact increasing members 24 (24a, 24b) protruding from the left and right ends of the set member 14 are provided.

  The mounting surface 21 is formed to be inclined with respect to the base surface 19. The holding portion 22 is provided in the vicinity of the mounting surface 21 and is formed of a plurality of projecting members extending in a direction perpendicular to the surface of the base surface 19. In addition, the protrusion member used as the holding portion 22 has a flexibility that can be easily bent by an external force such as tweezers, and has a shape holding property that can maintain the shape after being bent. The set member 14 holds the intraocular lens 80 by bending the protruding member of the holding unit 22 and sandwiching the intraocular lens 80 between the placement surface 21 and the holding unit 22. The holding unit 22 has a holding force that prevents the intraocular lens 80 from dropping due to its own weight even when the setting surface 20 faces downward.

  The set member 14 is formed with a plurality of through holes that penetrate the base surface 19 and the set surface 20. The through hole is formed in a shape corresponding to the protruding shape of the release member 15. Further, the insertion instrument body 10 of the present embodiment includes a displacement means 23, and the set member 14 can be displaced with respect to the insertion instrument body 10 by the displacement means 23. More specifically, the insertion instrument body 10 forms a hinge mechanism 23 (rotation means) as the displacement means 23. The set member 14 is connected to the insertion instrument body 10 by a hinge mechanism 23. The hinge mechanism 23 is provided on the distal end side of the set member 14, and the mounting portion 13 is rotated and displaced in the distal end direction of the insertion instrument body 10 with the hinge axis (displacement axis) of the hinge mechanism 23 as a fulcrum. The set member 14 can be rotated from the state in which the set member 14 is locked to the mounting portion 13 to the first rotation angle θ1 at which the set member 14 contacts the outer surface of the insertion portion 16. In addition, in the insertion instrument main body 10 of this embodiment, in a state where the release member 15 is not attached to the set member 14, the set member 14 can be rotated by 200 ° or more with respect to the insertion instrument main body 10. .

  The release member 15 is connected above the set member 14. The release member 15 can be attached to the base surface 19 of the set member 14. When the intraocular lens insertion system 1A is completed, the intraocular lens 80 is held off the axis of the extrusion axis A by the set member 14 (FIG. 6A). When the surgeon pushes the release member 15 in a direction approaching the push-out axis A at the use site or the like, the holding of the intraocular lens 80 of the set member 14 is released, and the intraocular lens 80 moves in a direction approaching the push-out axis A. And placed on the placing portion 13 (FIG. 6B). The insertion portion 16 is connected in the distal direction of the placement portion 13. The insertion portion 16 has a tapered shape, and the hollow portion penetrating from the proximal end to the distal end of the insertion instrument body 10 is tapered toward the distal end due to the tapered shape of the insertion portion 16. Due to the tapered hollow portion, the soft intraocular lens 80 placed on the placement portion 13 is folded small until it is pushed by the pushing means 30 and emitted from the distal end portion 26.

The distal end portion 26 is connected to the distal end side of the insertion portion 16. An opening for emitting the intraocular lens 80 is formed at the distal end portion 26. An opening surface 28 (bevel) is formed in the opening at an angle with respect to the extrusion axis A.
(1-2) Extruding means

  Next, the extrusion means 30 of this embodiment will be described using FIG. The extruding means 30 of this embodiment includes an extruding overhang portion 31, a shaft base portion 32, an extruding rod 33, and a tip end portion 34. An extrusion projecting portion 31 is disposed at the proximal end side of the extrusion means 30. The extrusion overhang portion 31 is formed as a planar member extending in a direction away from the extrusion axis A. The shaft base portion 32 is connected in the distal direction of the extrusion overhang portion 31. The shaft base portion 32 is formed with a thickness corresponding to the hollow diameter of the hollow portion of the main body portion 11. A protrusion 35 is provided on the outer surface of the top plate forming the shaft base 32. The protrusion 35 and the engagement hole 29 (29a, 29b) of the cylindrical main body 11 are engaged with each other, so that the protrusion 35 prevents the push-out means 30 that has advanced to a predetermined position of the push-out shaft A from reversing. Works as a notch mechanism.

  The intraocular lens insertion device 2 </ b> A of the present embodiment has two engagement holes 29 in the main body 11. The first engagement hole 29a is disposed at a position where the push-out means 30 where the intraocular lens 80 and the push-out means 30 do not come into contact with each other at the time of use starts. The second engagement hole 29b is disposed in the distal direction of the extrusion shaft A with respect to the first engagement hole 29a, and is provided at a position where the push-out means 30 and the intraocular lens 80 are in contact with each other during use. ing.

The push rod 33 is connected to the distal end side of the shaft base portion 32. The extrusion rod 33 is a rod-shaped member extending in the direction of the extrusion axis A. The push rod 33 is formed with a thickness that allows insertion of the opening of the distal end portion 26 of the insertion instrument body 10. The distal end portion 34 is connected to the distal end side of the push rod 33. When the user advances the push rod 33, the distal end portion 34 abuts on the intraocular lens 80 placed on the placement portion 13. When the push-out means 30 is further advanced, the intraocular lens 80 is ejected from the opening of the distal end portion 26 of the insertion instrument body 10.
(2) Case

  The case 3 of this embodiment is demonstrated using FIG. 1, FIG. The case 3 of this embodiment includes a case main body 50. A movement suppressing member 52 is attached to the case main body 50. The case body 50 includes a bottom portion 70 formed with a flat surface extending at least partially in the front-rear and left-right directions, a side portion 71 formed of a side surface extending upward from the peripheral edge of the bottom portion 70, and a front-rear left-right direction It is formed in a box-like shape having a flange portion 72 in which a plate-shaped flange extending in the direction is formed and an opening portion 73 opened upward.

  In addition, since the case main body 50 of this embodiment is formed by the thin wall whose cross-sectional thickness is 1 mm or less, the front surface (plane) and the back surface (bottom surface) are formed in the same shape. Further, the flat surface formed on the bottom portion 70 becomes a bottom surface 74 for placing the case body 50 on a work desk or the like, and the case body 50 can be placed so that the opening 73 of the case body 50 faces upward. . The bottom surface 74 may be formed by forming a plurality of protrusions extending from the case body 50 in the bottom direction.

  The opening 73 of the case body 50 can be sealed with a flexible sheet. The case main body 50 can absorb a shock applied from the outside to the intraocular lens insertion system 1A during transportation or storage, and can avoid a failure of the accommodated intraocular lens insertion device 2A. Further, by sealing the space in which the intraocular lens insertion device 2A is accommodated by the case 3 and the flexible sheet, the intraocular lens insertion device 2A can be held in a sterilized state. Moreover, since the flexible sheet of this embodiment passes the gas used for sterilization, it can sterilize in the state which sealed the intraocular lens insertion instrument 2A with the case 3 and the flexible sheet.

  The movement suppressing member 52 is a member that regulates the movement of the intraocular lens 80 of the intraocular lens insertion device 2A in which the intraocular lens 80 is set. In addition, although the intraocular lens insertion system 1A of this embodiment isolate | separates the recessed space formed by the uneven | corrugated shape of the case 3 and the exterior of the case 3 using a flexible sheet, Application can be selected in a timely manner.

In the present embodiment, the case main body 50 and the movement suppressing member 52 are formed of resin. The case 3 of the present embodiment is formed by a vacuum molding method that can manufacture a case body 50 that requires a larger mold than the intraocular lens insertion instrument 2A at a low cost, and can be moved with a smaller mold than the intraocular lens insertion instrument 2A. The suppressing member 52 is formed by an injection molding method that enables molding of a precise structure. By properly using the molding method, the case 3 can be manufactured at a low cost without causing a mechanical restriction associated with the molding accuracy of the parts. In addition, although the case 3 of this embodiment uses the case main body 50 and the movement suppressing member 52 as separate parts, they may be integrally formed as one member. Further, the non-preset intraocular lens insertion device 2B described later does not require the movement suppressing member 52.
(2-1) Movement suppression member

The movement suppressing member 52 of the present embodiment includes a bottom plate and side plates that extend straight upward from the left and right ends of the bottom plate. Further, the movement suppressing member 52 of the present embodiment includes a plurality of protrusions 55 for engaging with the case body 50 and a plurality of holding portions 56 for holding the intraocular lens insertion device 2A. The protrusions 55 are provided on the outer surfaces of the left and right side plates, and the case main body 50 holds the movement suppression member 52 when the movement suppression member 52 is accommodated in the case main body 50. The holding portion 56 is provided on the inner surfaces of the left and right side plates 54. When the intraocular lens insertion device 2A is accommodated in the case 3, the holding portion 56 engages with the engaging portion 62 (62a, 62b) provided in the case main body 50, and the case 3 holds the intraocular lens insertion device 2A. Hold.
(2-2) Case body

  The case main body 50 of the present embodiment is molded by a vacuum molding method in which a softened resin sheet is pressed against a mold, the air between the sheet and the mold is evacuated, and the sheet is molded into a mold shape. The Since the vacuum forming method requires only one side of the mold, the cost required for the mold can be reduced compared to the injection molding method, and an inexpensive case 3 can be manufactured. Further, the case body 50 of the present embodiment uses a transparent resin. By forming the case main body 50 of a transparent resin, the accommodation state of the intraocular lens insertion device 2A accommodated from the outside of the case 3 can be visually confirmed when the intraocular lens insertion system 1A is completed, transported, or stored. can do.

  The case main body 50 includes a sheet adhering portion 57 for adhering a flexible sheet, and a component accommodation area 58 for accommodating the intraocular lens insertion device 2A and the like. The sheet bonding portion 57 is provided around the edge of the case body 50, and the sheet bonding portion 57 is formed with a flat surface with small irregularities. By setting it as a flat surface, the flexible sheet can be easily adhered. The component housing area 58 is formed inside the sheet bonding portion 57. The component housing area 58 includes a housing area 53 that houses the intraocular lens insertion device 2A, and a regulation area 68 that holds or moves the housed intraocular lens insertion device 2A. The component housing area 58 is formed to be recessed in one direction with respect to the sheet bonding portion 57. Further, the component housing area 58 has a recessed volume larger than the volume of the intraocular lens insertion device 2A.

  The component housing area 58 in which the housing area 53 and the regulation area 68 are formed includes a plurality of concave and convex portions 59 having different concave and convex shapes. The recessed portion 59 forms a recessed shape corresponding to at least the shape of the accommodated intraocular lens insertion device 2A. The case body 50 has a plurality of intraocular lens insertion devices 2 </ b> A accommodated therein by forming a boundary wall extending toward the bottom surface at the boundary between the accommodation region 53 and the regulation region 68 by the uneven shape forming the recessed portion 59. A plurality of holding parts (200, 210) to be held at places are provided. The case main body 50 is interspersed with a plurality of holding portions (200, 210) inside the component housing area 58, and holds the intraocular lens insertion device 2A at a plurality of locations.

  Note that, in the plurality of holding portions (200, 210) of the present embodiment, the heights of the boundary walls forming the holding portions are different at positions where the intraocular lens insertion device 2A is held or restricted from moving. More specifically, the portion of the holding portion (200, 210) that sandwiches and holds the intraocular lens insertion device 2A forms a high boundary wall and restricts the movement (turning) of the intraocular lens insertion device 2A (200, 210). This part has a low boundary wall. By changing the height of the boundary wall, the holding of the intraocular lens insertion device 2A is stabilized, and the removal of the intraocular lens insertion device 2A is facilitated.

  Moreover, even if the intraocular lens insertion device 2 </ b> A is accommodated in the component accommodation region 58, the depression amount (depth) of the recess 59 serving as the accommodation region 53 for accommodating the intraocular lens insertion device 2 </ b> A is not limited. The upper side of 2A is formed with a depth not exceeding the flat surface of the sheet bonding portion 57.

  In this embodiment, since the case main body 50 and the movement suppressing member 52 are combined, a recessed portion 66 that accommodates the movement suppressing member 52 in the component housing area 58 and a plurality of holding means 67 (67a) that holds the movement suppressing member 52 are provided. 67b). The recessed portion 66 is formed with a recessed amount having a volume larger than the volume of the movement suppressing member 52. The recessed portion 66 includes a fixed portion 61 that houses the movement suppressing member 52 and an engaging portion 62 (62a, 62b) that engages with the movement suppressing member 52. The fixed portion 61 has a bottom surface and side surfaces.

  Note that the recessed portion 59 of the case main body 50 of the present embodiment is directed from the sheet bonding portion 57 serving as a reference surface of one sheet when the case main body 50 is formed toward the bottom portion 70 that is a deformed direction. A tapered side surface 75 that is tapered is formed. A plurality of case main bodies 50 from which the removable movement suppressing member 52 is removed can be easily overlapped by the tapered side surface 75. The tapered side surface 75 is not limited to the outer edge of the case body 50, and is formed at each uneven portion formed in the recessed portion 59 of the component housing region 58. In addition, it is not necessary to form all the uneven portions in a tapered shape.

The engaging part 62 (62a, 62b) is engaged with a plurality of protrusions 55 provided on the side surface of the movement suppressing member 52. The engaging portion 62 has a protruding shape formed at the upper end of the side surface of the fixed portion 61 and protrudes inside the fixed portion 61. The protrusion 55 provided on the movement suppressing member 52 and the engaging portion 62 provided on the case main body 50 engage with each other, so that the movement suppressing member 52 can be detachably attached to the case main body 50. .
<Holding part>

  The case main body 50 of this embodiment includes an individual holding unit 200 (200a to 200h) and a common holding unit 210 (210a to 210k) that restrict movement of the intraocular lens insertion device 2A housed in the case 3. Note that the individual holding unit 200 and the common holding unit 210 of the present embodiment form a holding mechanism by changing the amount of depression when the case main body 50 is formed from one sheet. The individual holding unit 200 and the common holding unit 210 may be formed of a member different from the case main body 50 and attached to the case main body 50. The individual holding unit 200 of the present embodiment selectively holds the intraocular lens insertion device according to the type of intraocular lens insertion device (details will be described in detail in the second embodiment).

  The individual holding unit 200 and the common holding unit 210 hold the intraocular lens insertion device 2A in the case 3, and the movement of the intraocular lens insertion device 2A housed in the case 3 in the front-rear direction, the left-right direction, and the vertical direction is restricted. . More specifically, the individual holding unit 200 and the common holding unit 210 sandwich the intraocular lens insertion device 2A and restrict the movement of the intraocular lens insertion device 2A. Note that a slight gap may be provided between the individual holding unit 200 (or the common holding unit 210) and the intraocular lens insertion device 2A to restrict the movement (movable amount) of the intraocular lens insertion device 2A.

  The common holding parts 210h, 210i, 210j, and 210k sandwich and hold the main body part 11 of the intraocular lens insertion device 2A extending in the direction of the extrusion axis A from both sides in the direction intersecting the axis direction of the extrusion axis A, and hold the intraocular lens. The movement of the insertion instrument 2A is restricted. Further, the individual holding portions 200e, 200f, 200g, and 200h sandwich and hold the pair of wing members 18 forming the main body overhanging portion 12 from the front-rear direction of the extrusion shaft A, and restrict the movement of the insertion instrument main body 10. ing. That is, the case 3 of the present embodiment includes the main body axial direction holding portion 200 that restricts the movement of the insertion instrument main body 10 in the direction of the extrusion axis A by the individual holding portion 200.

  Further, the common holding portions 210a, 210b, and 210c sandwich and hold the extrusion protruding portion 31 protruding from the rear end portion of the extrusion means 30 from the front-rear direction of the extrusion shaft A, and move the extrusion means 30 in the direction of the extrusion axis A. It is regulated. That is, the case 3 of the present embodiment includes the extrusion holding portions 210a, 210b, and 210c that restrict the movement of the extrusion means 30 in the direction of the extrusion axis A by the common holding portions 210a, 210b, and 210c.

  In the case 3 of the present embodiment, the holding portion 56 included in the movement suppressing member 52 attached to the case main body 50 also holds the main body portion 11 sandwiched from the left and right directions to restrict the movement of the intraocular lens insertion device 2A. ing. The common holding part 210 includes a plurality of common main body holding parts 210d to 210k that sandwich the insertion instrument main body 10 from both sides in the direction intersecting the axial direction of the extrusion axis A at different positions in the axial direction of the extrusion axis A.

  In addition, the intraocular lens insertion device 2A of the present embodiment advances the pushing means 30 in the direction of the pushing shaft A to the position where the projection 35 of the pushing means 30 is engaged with the engagement hole 29a of the insertion device main body 10, and the case 3 accommodates an intraocular lens insertion device 2A. By moving the push-out means 30 to the position where it engages with the engagement hole 29a, the intraocular lens 80 can be immediately inserted into the eye when the intraocular lens insertion device 2A is taken out from the case 3 during use. it can. In addition, you may determine the advancing position of the extrusion means 30 of the intraocular lens insertion instrument 2A accommodated in the case 3 timely.

  Note that the case 3 of the present embodiment includes a grasping space forming portion 65 into which an operator's finger is inserted. More specifically, a gap (concave portion) through which an operator's finger can be inserted is provided between the intraocular lens insertion device 2 </ b> A and the side portion 71 of the case body 50. The grasping space forming portion 65 of the present embodiment has a gap extending in the left-right direction of the extrusion shaft A between the placement portion 13 and the main body overhanging portion 12 of the intraocular lens insertion device 2A.

  Further, in the case 3 of the present embodiment, in order to fill the intraocular lens 80 into the intraocular lens insertion instrument 2A, the regulation member 63 (63a) that regulates the rotation of the set member 14 that rotates relative to the insertion instrument body 10. 63b). More specifically, a restricting member 63 is provided in the distal direction of the case 3, and the restricting member 63 is formed with a recess (depressed shape) shallower than the bottom portion 70 of the case body 50. By forming the restricting member 63 with a recess shallower than the recess forming the bottom portion 70, the rotation of the set member 14 of the intraocular lens insertion device 2 </ b> A housed in the case 3 is restricted to a suitable rotation angle. be able to.

The set member 14 of the intraocular lens insertion device 2A housed in the case 3 is in a second rotation angle θ2 at which the set surface 20 of the set member 14 is horizontal with the extrusion axis A from the state where it is locked to the mounting portion 13. Rotate until More specifically, the set member 14 is rotated to the second rotation angle θ2 by the displacement means 23, and the rotation of the set member 14 is stopped (restricted) when the set member 14 and the restricting member 63 come into contact with each other. In addition, you may form the holding means 67 which hold | maintains the set member 14 which contacted the control member 63. FIG. For example, the case 3 may be formed with a convex shape that enters the rotation region of the set member 14 in the vicinity of the regulating member 63, and the set member 14 that contacts the regulating member 63 may be locked (FIG. 11).
2. Assembly method

  Next, an assembly method of the intraocular lens insertion system 1A will be described. In addition, the 1st to 5th step demonstrated below demonstrates the location in connection with the manufacturing process of the intraocular lens insertion system 1A which sets the intraocular lens 80 to the intraocular lens insertion device 2A accommodated in case 3. FIG.

  As a first step, the assembly operator places the case main body 50 on the work surface of the work desk, and assembles the movement suppressing member 52 to the case main body 50.

  As a second step, the assembling operator houses the intraocular lens insertion device 2 </ b> A in the case 3. More specifically, the assembling worker accommodates the intraocular lens insertion device 2A in the case 3 to which the movement suppressing member 52 is assembled (FIG. 8A). At this time, the intraocular lens 80 is not filled in the intraocular lens insertion device 2A. Further, the release member 15 is not attached to the set member 14.

  In the second step of this embodiment, the intraocular lens insertion device 2A is housed in the case 3 with the set member 14 open. More specifically, the insertion instrument body 10 of the present embodiment is integrally formed by injection molding except for the release member 15 that can be mounted. Therefore, when the insertion instrument main body 10 is molded, the set member 14 is not engaged with the placement portion 13 and is open. By accommodating the intraocular lens insertion device 2A in the state in which the set member 14 is opened in the case 3, the assembly member engages with the mounting portion 13 during the operation of the second step. The trouble of removing can be omitted. In addition, the intraocular lens insertion device 2A accommodated in the state where the set member 14 is opened is completed by closing the set portion in a fifth step described later.

  As a third step, the assembly operator rotates the set member 14 of the intraocular lens insertion device 2 </ b> A accommodated in the case 3 until it contacts the case 3. More specifically, the assembly operator rotates the set member 14 of the intraocular lens insertion device 2A until the base surface 19 of the set member 14 comes into contact with the regulating member 63 (63a, 63b) (FIGS. 7 and 8 (a)). ), FIG. 8 (b)). The set member 14 may be rotated by holding the set member 14 with tweezers or the like. When the base surface 19 of the set member 14 comes into contact with the regulating member 63, the assembly operator holds the rotation of the set member 14. More specifically, the assembly operator holds the rotation angle of the set member 14 by pressing the set member 14, which is restricted to the second rotation angle θ <b> 2 by the restriction member 63, with the finger against the restriction member 63.

  As a fourth step, the assembly operator sets the intraocular lens 80 on the opened set member 14. More specifically, the assembling operator sets the intraocular lens 80 on the open set member 14. The assembly operator grasps the tweezers with the right hand, and places the intraocular lens 80 grasped with the tweezers on the placement surface 21 of the set surface 20 facing upward (FIGS. 8B and 8C). Subsequently, the assembly operator bends the protrusion-shaped holding portion 22 formed around the set surface 20 toward the intraocular lens 80 with tweezers. The intraocular lens 80 placed on the placement surface 21 is held by the holding unit 22.

  As a fifth step, the assembly operator closes the set member 14 that is turned open in order to connect (engage) the mounting member 14 with the mounting portion 13. More specifically, the assembly operator rotates the set member 14 that is in contact with the regulating member 63 and connects it to the placement portion 13 of the intraocular lens insertion device 2A (FIG. 8D). The assembly operator attaches the release member 15 to the base surface 19 of the set member 14 when the set member 14 is engaged with the mounting portion 13. In the state where the intraocular lens insertion device 2A is accommodated in the case 3 to which the movement suppressing member 52 is attached, the intraocular lens 80 held by the set member 14 even when the release member 15 is pushed in the direction approaching the push-out axis A. Is not released, and the intraocular lens 80 is held off the axis of the extrusion axis A.

  As described above, the intraocular lens 80 is set in the intraocular lens insertion device 2A accommodated in the case 3. Adhesion of the flexible sheet to the case body 50 or sterilization processing of the intraocular lens insertion system 1A is performed as appropriate, and the intraocular lens insertion system 1A is completed.

  The intraocular lens insertion system 1A of the present embodiment makes it easier to set the intraocular lens 80 by displacing the set member 14 at a position away from the mounting portion 13 different from that used when the intraocular lens 80 is set. When the intraocular lens 80 set on the member 14 is used, the displacement is returned to the vicinity of the mounting portion 13 where the intraocular lens 80 is located. Since the case 3 serves as a jig for setting the intraocular lens 80 in the intraocular lens insertion device 2A, a complicated structure for setting the intraocular lens 80 in the intraocular lens insertion device 2A may not be provided.

In addition, since the case 3 is transported together with the intraocular lens insertion device 2A to the use site or the like, the intraocular lens 80 set on the intraocular lens insertion device 2A is unintentionally deformed or positioned due to excessive impact during transportation. Even if a deviation or the like occurs, an operator or the like can easily reset the intraocular lens 80 to the intraocular lens insertion device 2A at the transport destination.
Second Embodiment

Subsequently, a second embodiment of the present invention will be described with reference to FIGS.
3. overall structure

The intraocular lens insertion system 1B of the second embodiment includes a case main body 50 and an intraocular lens insertion device 2B. The case body 50 uses the same components as in the first embodiment. Further, as in the first embodiment, a flexible sheet is used for sealing at an appropriate time.
(1) Intraocular lens insertion device, non-preset type

  An intraocular lens insertion device 2B according to a second embodiment will be described. The intraocular lens insertion device 2 </ b> B is a non-preset type intraocular lens insertion device 2 </ b> B that fills the intraocular lens 80 at a use site where the intraocular lens 80 is inserted into a patient's eye. The intraocular lens insertion device 2 </ b> B includes a cylindrical insertion device main body 10 and a rod-shaped extrusion means 30. The insertion instrument body 10 includes a body portion 11, a body overhang portion 12, a placement portion 13, a set member 25, and an insertion portion 16. A distal end portion 26 is provided at the distal end of the insertion portion 16.

  The insertion instrument body 10 includes a displacement means 23, and the set member 25 can be displaced with respect to the insertion instrument body 10 by the displacement means 23. More specifically, the set member 25 is rotated in the direction of the extrusion axis A by the displacement means 23. The intraocular lens 80 used for the intraocular lens insertion device 2B is a flexible intraocular lens that can be folded, as in the first embodiment.

  The intraocular lens insertion device 2B and the intraocular lens insertion device 2A described in the first embodiment are configured with different parts. The same reference numerals are used for portions having similar functions, and detailed description of each component is omitted. Note that, similarly to the intraocular lens insertion device 2A described in the first embodiment, the intraocular lens insertion device 2B is formed by molding using a resin material, cutting processing by cutting out a resin, or the like.

In the intraocular lens insertion device 2A of the first embodiment, the setting member 14 and the release member 15 are related to the placement of the intraocular lens 80 on the placement unit 13, whereas the intraocular lens insertion device of the second embodiment. 2B relates to the placement of the intraocular lens 80 on the placement unit 13 by the set member 25. The set member 25 is a plate-like member and can be opened and closed with respect to the insertion instrument body 10. The intraocular lens 80 can be placed on the placement portion 13 by opening the set member 25. When the set member 25 is closed and the push-out means 30 is advanced in the direction of the insertion instrument body 10, the intraocular lens 80 placed on the placement portion 13 is ejected from the distal end portion 26.
(2) Case

The case 3 of the second embodiment includes a case body 50. The case body 50 is the same component as in the first embodiment. Since the intraocular lens insertion device 2A of the first embodiment and the intraocular lens insertion device 2B of the second embodiment are different in type, the case 3 of the second embodiment does not use the movement suppressing member 52. .
4). Assembly method

  Next, an assembly method of the intraocular lens insertion system 1B will be described. As a first step, the assembly operator places the case main body 50 on the work surface of the work desk. As a second step, the assembly operator houses the intraocular lens insertion device 2B in the case 3. More specifically, the intraocular lens insertion instrument 2B is rotated to the right so that the set member 25 that opens in the direction of the extrusion axis A with respect to the insertion instrument body 10 faces the right direction, and the intraocular lens with the set member 25 open. The insertion device 2B is accommodated in the case 3. The intraocular lens insertion device 2B is accommodated in the case 3 as described above. Adhesion of the flexible sheet to the case main body 50, sterilization processing of the intraocular lens insertion system 1B, and the like are performed as appropriate, and the intraocular lens insertion system 1B is completed.

  An embodiment in which different types of intraocular lens insertion instruments (2A, 2B) are housed in a common case 3 (case body 50) will be described in detail with reference to FIG. 10A shows the case main body 50, FIG. 10B shows the intraocular lens insertion device 2B of the second embodiment housed in the case 3, and FIG. 2A shows an intraocular lens insertion device 2A of the first embodiment. 10 (a) to 10 (c) are plan views of the intraocular lens insertion instrument housing case 3. FIG. In addition, in the intraocular lens insertion devices 2A and 2B) illustrated in FIGS. 10B and 10C, only the contour shapes of the insertion device main body 10 and the pushing means 30 are illustrated.

  The main body overhanging portion 12 of the intraocular lens insertion device 2B described in the second embodiment is held by the individual holding portions 200a to 200d, and the main body overhanging portion 12 of the intraocular lens insertion device 2A described in the first embodiment is an individual holding portion. 200e-200h. On the other hand, the extrusion overhanging portion 31, the shaft base portion 32, and the main body portion 11 of the push-out means 30 are shared by both the intraocular lens insertion device 2B described in the second embodiment and the intraocular lens insertion device 2A described in the first embodiment. 210a to 210k. Note that, as described in the first embodiment, the intraocular lens insertion device 2 </ b> A is also held by the holding portion 56 of the movement suppressing member 52 attached to the case 3.

  Further, the case 3 of the present embodiment includes a rotation restricting portion 220 (220a, 220b) that holds the displacement of the set member 25 of the intraocular lens insertion device 2B. The set member 25 of the intraocular lens insertion device 2B described in the second embodiment is accommodated in the case 3 while being rotated and opened in the direction of the push-out axis A. The rotated set member 25 is moved by the rotation restricting portion 220. The case 3 is held in an open state.

  More specifically, the rotation restricting portion 220a and the rotation restricting portion 220b are disposed in the rotatable range of the set member 25 of the intraocular lens insertion device 2B. The intraocular lens insertion device 2B is accommodated in the case 3 from above so that the set member 25 opened between the rotation restricting portion 220a and the rotation restricting portion 220b is disposed. The grasping space forming unit 65 is shared by the intraocular lens insertion devices 2A and 2B. Since the movement suppressing member 52 is detachable, the case bodies 50 storing the intraocular lens insertion device 2A and the intraocular lens insertion device 2B can overlap the case bodies 50 before or after use. Moreover, since the case main body 50 is formed in a taper shape toward the bottom surface, the case main bodies 50 can be easily stacked.

As described above, the case 3 according to the present embodiment stores the intraocular lens insertion devices (2A, 2B) having different shapes in one type of case 3 by selectively applying the plurality of holding members (200, 210). can do.
5. Action and effect

  As described above, the intraocular lens insertion system 1A according to the present embodiment can displace the intraocular lens insertion device 2A relative to the insertion device body 10 in a state where the intraocular lens insertion device 2A is accommodated in the case 3 (angle). The amount of displacement of the set member 14 (first set member) that is θ1) is regulated (angle θ1> angle θ2) by the regulating members 63 (63a, 63b) provided in the case 3. By restricting the amount of displacement of the set member 14 by the restriction member 63, the operator can easily set the intraocular lens 80 on the intraocular lens insertion device 2A. In addition, since the intraocular lens 80 can be suitably set in the intraocular lens insertion device 2A even when the intraocular lens insertion device 2A is housed in the case 3, a dedicated jig for fixing the intraocular lens insertion device 2A is not required. Thus, the intraocular lens insertion system 1A can be provided at a low cost.

  Moreover, 1 A of intraocular lens insertion systems of this embodiment can displace the set member 14 with a simple mechanism by connecting the set member 14 and the insertion instrument main body 10 with the hinge mechanism 23. FIG. When the set member 14 opened by the hinge mechanism 23 comes into contact with the restricting member 63 (63a, 63b) provided in the case 3, the displaceable (θ1) of the set member 14 is restricted to a suitable displacement amount (θ1> θ2). The Since the intraocular lens 80 can be set in the intraocular lens insertion device 2A housed in the case 3 with a simple mechanism, the intraocular lens insertion system 1A can be provided at a low cost.

  Further, in the intraocular lens insertion system 1 </ b> A of the present embodiment, the set member 14 that is displaced at a position where the set surface 20 of the set member 14 and the bottom surface 74 of the case 3 are parallel contacts the regulating member 63 of the case 3. When the operator places the case 3 containing the intraocular lens insertion device 2A on the work table and sets the intraocular lens 80, the work surface and the set surface 20 on which the intraocular lens 80 is set are parallel to each other. The inner lens 80 can be easily set on the intraocular lens insertion device 2A.

  Note that the set surface 20 and the bottom surface 74 of the case 3 may not be completely parallel. It is sufficient that the intraocular lens 80 set on the setting surface 20 is difficult to move due to its own weight. For example, the intraocular lens 80 may be regulated at an angle at which the intraocular lens 80 does not roll off the set surface 20 due to its own weight. Further, for example, it is conceivable that the intraocular lens 80 can be set more stably if the set surface 20 on which the intraocular lens 80 is set is formed in a concave shape.

  In addition, the intraocular lens insertion system 1A of the present embodiment forms the accommodation region 53 of the intraocular lens insertion device 2A and the regulation region 68 that forms the regulation member 63 by deforming one sheet into an uneven shape. . By forming the storage area 53 and the regulation area 68 from one sheet, the cost for the case 3 can be reduced. Since the number of parts is not increased for the movement suppressing member 52, both the part cost and the assembly cost can be suppressed, and the intraocular lens insertion system 1A can be provided at a low cost.

  Further, in the intraocular lens insertion system 1A of the present embodiment, the contact area between the displaced set member 14 and the regulating member 63 is increased because the set member 14 includes the contact increasing member 24 (24a, 24b). By increasing the contact area, the displacement of the set member 14 is stably regulated. The operator can easily set the intraocular lens 80 in the intraocular lens insertion device 2 </ b> A housed in the case 3.

  In addition, since the intraocular lens insertion system 1A of the present embodiment includes the holding unit 67 that holds the set member 14 that is displaced to the case 3, the set member 14 has a displacement amount (θ2) regulated by the regulating member 63. It is held in case 3. The operator can easily set the intraocular lens 80 on the set member 14 whose displacement is regulated by the regulating member 63 without pressing the set member 14 with a hand or a tool.

  In addition, the intraocular lens insertion system 1A of the present embodiment is a release member for releasing the restriction of the movement of the intraocular lens 80 in the intraocular lens insertion device 2A in a state where the intraocular lens insertion device 2A is housed in the case 3. 15 can be mounted. Therefore, it is possible to reduce the time and labor required for the assembling work, and to suppress the provision price of the intraocular lens insertion system 1A. In addition, since the intraocular lens 80 can be set (filled) and the release member 15 can be mounted while the intraocular lens insertion device 2A is housed in the case 3, the intraocular lens 80 may be moved inadvertently during assembly work. Work mistakes can be prevented.

  In this embodiment, the displacement member 23 is used to displace the set member 14 in the direction of the extrusion axis A. However, the direction in which the set member 14 is displaced is not limited to the direction of the extrusion axis A. For example, the hinge shaft of the hinge mechanism 23 may be provided so as to be parallel to the extrusion axis A, and the set member 14 may be displaced in a direction away from the extrusion axis A. Further, instead of the hinge mechanism 23, another displacement mechanism such as a slide mechanism may be used.

  In the present embodiment, the case main body 50 constituting the case 3 is formed by deforming one sheet into an uneven shape, but the case main body 50 may be formed by injection molding. When the case body 50 is formed by injection molding, the number of parts of the case 3 can be reduced by integrally forming the case body 50 and the movement suppressing member 52, and the manufacture of the case 3 can also be suppressed in the injection molding. .

  Further, in the present embodiment, the intraocular lens insertion system 1A is transported using the preset type intraocular lens insertion device 2A while the intraocular lens 80 is set (filled), but the intraocular lens 80 is set. First, the intraocular lens insertion system 1A may be completed. That is, the operator or the like may set the intraocular lens 80 on the intraocular lens insertion device 2A at the site of use. Further, the intraocular lens insertion device 2A, the case 3, and the intraocular lens 80 of the present embodiment are separately transported to the use site, and an operator or the like sets the intraocular lens 80 on the intraocular lens insertion device 2A at the use site. May be. More specifically, the case 3 can be considered to combine the role of storing (protecting) the intraocular lens insertion device 2A and the role of a jig for setting the intraocular lens 80 on the intraocular lens insertion device 2A.

  Even when the intraocular lens 80 is set in a state where the intraocular lens insertion device 2 </ b> A is housed in the case 3 at the use site or the like, the displacement amount of the set member 14 is restricted by the restriction member 63, thereby causing the intraocular lens 80. Can be easily set, and the intraocular lens 80 can be quickly inserted into the eye. It is sufficient that the intraocular lens 80 can be set on the set member 14 whose displacement is restricted by the restriction member 63. For example, the release member 15 is separated and stored in the case 3, and the set member 14 of the intraocular lens insertion device 2A is stored. For example, after the intraocular lens 80 is set, the release member 15 of the intraocular lens insertion device 2A is attached.

  Moreover, although the case 3 of the present embodiment includes the movement suppressing member 52, the movement suppressing member 52 can be omitted. For example, the intraocular lens insertion device 2 </ b> A only needs to include the movement suppressing member 52.

  In the case 3 of the present embodiment, the case body 50 includes the restriction member 63, but the movement suppressing member 52 may include the restriction member 63. Alternatively, the intraocular lens insertion system 1 </ b> A may be configured by the intraocular lens insertion device 2 </ b> A and the movement suppressing member 52 having the restriction member 63 without using the case 3. The case 3 may accommodate a part of the intraocular lens insertion device 2A. It is not restricted to this, You may provide the regulating member 63 in the member removed from 2A of intraocular lens insertion devices at the time of use. More specifically, a regulating member 63 that regulates (θ1> θ2) the displacement amount of the displaceable set member 14 that sets the intraocular lens 80 on the member that is removed during use may be provided. The member provided with the regulating member 63 may be a member that is attached at the time of transportation or that is attached at the site of use, and that can be removed from the intraocular lens insertion device 2A at the time of use (operation).

1A Intraocular lens insertion system 2A Intraocular lens insertion instrument 3 Case 10 Main body 14 Set member 23 Displacement means 63a Restriction member 63b Restriction member 80 Intraocular lens

Claims (2)

An intraocular lens insertion system having an intraocular lens insertion device having a set member on which an intraocular lens is set, and a case for housing the intraocular lens insertion device,
The set member is pivotally connected to the main body by a hinge mechanism to be open or closed with respect to the main body of the intraocular lens insertion instrument,
When the intraocular lens insertion device is housed in the case, a restriction member that restricts the amount of rotation of the set member in the opening direction in an open state with respect to the main body to set the intraocular lens is In the case,
The set member has a set surface for setting the intraocular lens, and the set member is in the rotating position where the set surface of the set member in an open state and the bottom surface of the case are substantially parallel to each other. The amount of rotation of the set member in the opening direction is regulated by contacting the
An intraocular lens insertion system.   The intraocular lens insertion system according to claim 1, wherein the case includes a holding unit that holds the set member in an open state with respect to the main body.