WO2005070341A1 - Dispositif d'insertion de lentille intraoculaire et sa cartouche - Google Patents

Dispositif d'insertion de lentille intraoculaire et sa cartouche Download PDF

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Publication number
WO2005070341A1
WO2005070341A1 PCT/JP2005/000576 JP2005000576W WO2005070341A1 WO 2005070341 A1 WO2005070341 A1 WO 2005070341A1 JP 2005000576 W JP2005000576 W JP 2005000576W WO 2005070341 A1 WO2005070341 A1 WO 2005070341A1
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WO
WIPO (PCT)
Prior art keywords
intraocular lens
hole
cartridge
groove
plunger
Prior art date
Application number
PCT/JP2005/000576
Other languages
English (en)
Japanese (ja)
Inventor
Hideyuki Futamura
Original Assignee
Hoya Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoya Corporation filed Critical Hoya Corporation
Priority to JP2005517244A priority Critical patent/JP4707016B2/ja
Publication of WO2005070341A1 publication Critical patent/WO2005070341A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1662—Instruments for inserting intraocular lenses into the eye
    • A61F2/1664—Instruments for inserting intraocular lenses into the eye for manual insertion during surgery, e.g. forceps-like instruments

Definitions

  • the present invention relates to an intraocular lens insertion device for inserting an intraocular lens from an incised wound of an eyeball into a lens capsule in the eyeball, and a cartridge thereof.
  • an intraocular lens insertion (injection) device for inserting an intraocular lens into a capsular bag in an eyeball
  • a plan for extruding an intraocular lens as disclosed in Patent Document 1
  • a handpiece having a jar and a cartridge (injection cartridge) having a through-hole (lumen) having a longitudinal centerline are known! /
  • the cartridge is received in the handpiece so that the plunger can move through the through hole.
  • the distal end of the plunger has a rounded shape portion and a lens contact portion that is asymmetrically offset with respect to the center line of the through hole. Then, in the intraocular lens insertion device, the tip end of the offset plunger is pushed so that the tip end of the plunger is directed downward, that is, against the bottom of the through hole of the cartridge. Has become. Such downward bias prevents the tip of the plunger from climbing over the intraocular lens (IOL). If the tip of the plunger gets over the intraocular lens, the area around the tip of the plunger will be wrapped in the intraocular lens, and the plunger will push the intraocular lens when it is pressed. Only the tip of the plunger advances without the lens proceeding, and the intraocular lens cannot be inserted into the eye.
  • IOL intraocular lens
  • the offset of the tip of the plunger makes it difficult for the loop (haptics) of the intraocular lens to be trapped between the rod of the plunger and the through hole of the cartridge. This prevents the loop of the intraocular lens from being damaged and the intraocular lens from being prevented from moving through the through-hole.
  • Patent Document 2 discloses a lens contact portion provided at the distal end portion of a plunger (extrusion shaft) and in contact with an intraocular lens (lens for intraocular insertion);
  • an intraocular lens insertion device provided with an urging means for urging the lens in a direction of pressing the inner wall of an insertion tube for inserting the lens into an eye.
  • the intraocular lens insertion device includes an optical unit formed of a deformable elastic body having a predetermined shape memory characteristic, and the optical unit formed of the same or different material as the optical unit and supporting the optical unit in the eye.
  • the plunger provided substantially coaxially with the insertion tube is moved forward by an extruding mechanism to push the intraocular lens formed of a loop (supporting portion) into the eye through the distal end force of the insertion tube.
  • the intraocular lens insertion device it is possible to prevent the intraocular lens from being damaged or damaged due to the lens contact portion getting over the edge of the intraocular lens, and to more reliably insert the intraocular lens into the eye. Can be inserted inside.
  • Patent Document 3 discloses an intraocular lens insertion device including a cartridge having a continuous concave portion formed over the entire length of the inner wall (lumen) of an elongated through hole.
  • the tip (engaging head) of the plunger plunger rod
  • the intraocular lens insertion device since the tip of the plunger is partially located in the gap between the concave portion and the intraocular lens, the intraocular lens is firmly captured by the tip of the plunger.
  • Patent Document 1 Japanese Patent Publication No. 2002-516709
  • Patent Document 2 JP-A-11 113939
  • Patent Document 3 WO02Z074208 International Publication Pamphlet
  • the tip of the plunger is offset downward with respect to the center line in the longitudinal direction of the rod of the plunger while being formed on the cartridge.
  • the plunger By urging the plunger downward against the bottom of the through-hole to prevent damage to the intraocular lens due to the tip of the plunger riding on the intraocular lens, If the R dimension of the tip corner of the plunger in contact with the bottom of the hole is larger than the thickness of the edge of the optic of the intraocular lens, the tip of the plunger may ride on the intraocular lens.
  • the accuracy of preventing damage to the intraocular lens due to the above is reduced.
  • the material of the intraocular lens is more adhesive than the elastic or rubber material! There was a problem that it was easy to get on the intraocular lens.
  • a lens contact portion provided at the distal end of the plunger and in contact with the intraocular lens, and a lens contact portion in a direction of pressing the lens contact portion against the inner wall of the insertion tube are provided.
  • the provision of biasing means to prevent the damage of the intraocular lens due to the tip of the plunger getting on the intraocular lens is provided, as in the former technique, If the R dimension at the corner of the tip of the lens contacting part that contacts the inner wall is larger than the thickness of the edge of the optical part of the intraocular lens, the tip of the plunger will ride on the intraocular lens. There has been a problem that the accuracy of preventing damage to the intraocular lens is reduced.
  • the lens contact portion of the plunger is urged by the urging means in the direction of pressing against the inner wall of the insertion tube, the lens contact portion and the insertion tube are moved when the plunger moves inside the insertion tube. There was a problem that dust was generated due to friction with the inner wall.
  • the present invention has been made in view of such circumstances, and when inserting an intraocular lens into a capsular bag in an eyeball with a plunger, the tip of the plunger is placed on the intraocular lens.
  • the accuracy of preventing damage to the intraocular lens due to riding up can be increased, and friction between the tip of the plunger and the through-hole when the plunger moves through the through-hole can be improved.
  • the intraocular lens insertion device and the cartridge thereof according to the present invention employ the following means.
  • the intraocular lens insertion device has an insertion port into which the intraocular lens is inserted.
  • a discharge port from which the intraocular lens is discharged a through hole penetrating from the insertion port to the discharge port, and a plunger for discharging the discharge rocker by pressing the inserted intraocular lens.
  • the through hole includes a groove formed so that the plunger can enter, and the groove is formed to be inclined with respect to the inner surface of the through hole so as to gradually become shallow toward the insertion hole and the discharge port. It is characterized by having been done.
  • the through hole has a groove formed so that the plunger can enter, and the groove is formed to be inclined with respect to the inner surface of the through hole so as to gradually become shallower toward the insertion rocker discharge outlet.
  • the intraocular lens curves substantially in accordance with the curvature of the through-hole, and the plunger enters the groove formed in the through-hole.
  • the plunger can press the rear end surface of the intraocular lens near the center of the plunger tip, increasing the likelihood of preventing the intraocular lens from being damaged by the plunger tip riding on the intraocular lens. can do.
  • the groove is formed so as to be inclined with respect to the inner surface of the through-hole so that the depth gradually decreases from the insertion port to the discharge port. The intraocular lens will not be damaged by this.
  • the groove is formed from the insertion port to between the insertion port and the center of the through hole.
  • the intraocular lens insertion device is the device according to claim 1, wherein the groove is inserted through the insertion port and the eye from the insertion port through the insertion port. It is characterized in that it is formed up to the position where the center of the inner lens is in contact.
  • the intraocular lens Since the groove is formed from the insertion opening to a position between the insertion opening and the position where the center of the inserted intraocular lens is inserted, the intraocular lens is inserted into the through hole from the insertion opening.
  • the intraocular lens is curved substantially in accordance with the curvature of the through-hole at a portion where no groove is formed, and the state is maintained by the rigidity of the intraocular lens. If the intraocular lens is not properly inserted when inserting the intraocular lens, it is possible to prevent the intraocular lens from falling into the groove.
  • the intraocular lens insertion device in the intraocular lens insertion device according to claim 4, the intraocular lens insertion device according to any one of claims 13 to 13, wherein the insertion port is provided between the bottom surface of the groove and the inner surface of the through hole. It is characterized in that a gap is opened from the bottom surface of the groove, one end of the tip of the plunger is located, and the other end of the tip of the plunger is located inside the inner surface of the through hole. Sign.
  • a gap is formed between the bottom surface of the groove and the inner surface of the through hole from the bottom surface of the groove, and one end of the tip of the plunger is located. Since it is configured to be located inside the inner surface of the through hole, the tip of the plunger can form a gap with the bottom surface of the groove at the insertion port, and the plunger of the through hole passes through the inside of the through hole. It is possible to reduce dust generated when the tip of the plunger slides through the through hole when the plunger moves.
  • the width of the groove is smaller than the inner diameter of the through hole.
  • the intraocular lens normally inserted from the insertion port into the through hole does not fall into the groove and change the curvature of the intraocular lens.
  • the intraocular lens insertion device is the device according to any one of claims 115, wherein the cartridge in which the intraocular lens is loaded and the cartridge are detachably supported.
  • a cartridge in which an intraocular lens is loaded, a handpiece having a plunger that removably supports the cartridge and an insertion port, a discharge port, and a through-hole are provided in the cartridge. Therefore, the cartridge provided with the insertion port, the discharge port, and the through hole is formed separately from the node piece, so that the cartridge can be disposable, which is excellent in sanitation.
  • a cartridge of an intraocular lens insertion device is an eye including a cartridge into which an intraocular lens is loaded, and a handpiece having the plunger and detachably supporting the cartridge.
  • a cartridge for an inner lens insertion device comprising: an insertion port into which an intraocular lens is inserted; an ejection port from which an intraocular lens is ejected; and a through hole penetrating from the insertion port to the ejection port.
  • the through hole has a groove formed so that the plunger can enter, and the groove is formed to be inclined with respect to the inner surface of the through hole so as to gradually become shallower toward the insertion rocker and the discharge port. It is characterized by the following.
  • the through hole has a groove formed so that the plunger can enter, and the groove is formed so as to be inclined with respect to the inner surface of the through hole so as to gradually become shallower toward the insertion rocker discharge outlet.
  • the intraocular lens curves substantially in accordance with the curvature of the through-hole, and the plunger enters the groove formed in the through-hole.
  • the plunger can press the rear end surface of the intraocular lens near the center of the plunger tip, increasing the likelihood of preventing the intraocular lens from being damaged by the plunger tip riding on the intraocular lens. can do.
  • the groove is formed so as to be inclined with respect to the inner surface of the through-hole so that the depth gradually decreases from the insertion port to the discharge port. The intraocular lens will not be damaged by this.
  • the groove is formed from the insertion port to between the insertion port and the center of the through hole. And features.
  • the groove is formed from the insertion port to between the insertion port and the center of the through-hole, no groove is formed at the discharge outlet, and a large amount of stress acts on the intraocular lens. On the exit side, the groove reliably prevents the intraocular lens from being damaged.
  • the cartridge of the intraocular lens insertion device is the cartridge according to claim 7,
  • the groove is formed from the insertion port to a position between the insertion port and a position where the center of the intraocular lens inserted from the insertion port contacts.
  • the intraocular lens is inserted into the through hole from the insertion opening.
  • the intraocular lens is curved substantially in accordance with the curvature of the through-hole at a portion where no groove is formed, and the state is maintained by the rigidity of the intraocular lens. If the intraocular lens is not properly inserted when inserting the intraocular lens, it is possible to prevent the intraocular lens from falling into the groove.
  • the cartridge for an intraocular lens insertion device is the cartridge according to any one of claims 7 to 9, wherein at the insertion port, the bottom surface of the groove and the inner surface of the through hole are connected. A gap is opened from the bottom surface of the groove, one end of the tip of the plunger is located, and the other end of the tip of the plunger is located inside the inner surface of the through hole.
  • a gap is formed between the bottom surface of the groove and the inner surface of the through hole from the bottom surface of the groove, and one end of the tip of the plunger is located. Since it is configured to be located inside the inner surface of the through hole, the tip of the plunger can form a gap with the bottom surface of the groove at the insertion port, and the plunger of the through hole passes through the inside of the through hole. It is possible to reduce dust generated when the tip of the plunger slides through the through hole when the plunger moves.
  • the width of the groove is smaller than the inner diameter of the through hole.
  • the intraocular lens normally inserted into the through hole from the insertion opening does not fall into the groove and change the curvature of the intraocular lens.
  • FIG. 1 is a plan view showing a cartridge of the intraocular lens insertion device in one embodiment of the intraocular lens insertion device according to the present invention.
  • FIG. 2 is a sectional view of the cartridge of FIG. 1.
  • FIG. 3 is an enlarged view showing a grip portion of the cartridge of FIG. 1.
  • FIG. 4 is a perspective view showing a cross section of a through hole of the cartridge of FIG. 1.
  • FIG. 5 is a plan view showing an intraocular lens.
  • FIG. 6 is a perspective view showing a handpiece of the intraocular lens insertion device.
  • FIG. 7 is a perspective view showing the cartridge of FIG. 1 and the handpiece of FIG. 6.
  • FIG. 8 is a diagram illustrating a method of use and operation of an intraocular lens insertion device using the cartridge of FIG. 1.
  • FIG. 9 is a diagram illustrating a method of use and operation of an intraocular lens insertion device using the cartridge of FIG. 1.
  • FIG. 10 is a diagram illustrating a method of use and operation of an intraocular lens insertion device using the cartridge of FIG. 1.
  • FIG. 11 is a diagram for explaining a method of use and operation of the intraocular lens insertion device using the cartridge of FIG. 1.
  • FIG. 12 is a diagram illustrating a method of use and operation of an intraocular lens insertion device using the cartridge of FIG. 1.
  • FIG. 13 is a diagram illustrating a method of use and operation of an intraocular lens insertion device using the cartridge of FIG. 1.
  • FIG. 14 is a view illustrating a method of using and operation of an intraocular lens insertion device using the cartridge of FIG. 1.
  • FIG. 15 is a diagram illustrating a method of using and operation of an intraocular lens insertion device using the cartridge of FIG. 1.
  • FIG. 16 is a view for explaining a method of use and operation of the intraocular lens insertion device using the cartridge of FIG. 1.
  • FIG. 17 is a diagram illustrating a method of use and operation of the intraocular lens insertion device using the cartridge of FIG. 1.
  • FIG. 18 is a view illustrating a method of use and operation of an intraocular lens insertion device using the cartridge of FIG. 1.
  • FIG. 1 to FIG. 18 are diagrams illustrating an embodiment of an intraocular lens insertion device and a power cartridge thereof according to the present invention.
  • FIG. 1 to FIG. 4 are views showing the cartridge 10 of the intraocular lens insertion device of the present embodiment.
  • FIG. 1 (a) is a top view of the cartridge 10
  • FIG. 1 (b) is a side view of the cartridge 10
  • FIG. 1 (c) is a front view of the cartridge 10
  • FIG. 1 (d) is a rear view of the cartridge 10. .
  • the cartridge 10 includes a cartridge main body 12 formed in a substantially elongated cylindrical shape.
  • the distal end of the cartridge body 12 is provided with an insertion tube 14 that is inserted into the wound of the incised eyeball.
  • An outlet 16 for discharging the intraocular lens to the outside is provided at the tip of the insertion tube 14.
  • the outlet 16 is formed in an elliptical shape in which the tip of the insertion tube 14 is cut obliquely.
  • the major axis of the elliptical outlet 16 is counterclockwise from the upper end of the insertion tube 14 when viewed from the front. — Intersects with insertion tube 14 at 50 ° rotation.
  • the discharge port 16 has a position where the major axis thereof intersects the insertion tube 14, and the distal end force is also inclined rearward.
  • a cutout portion 18 is formed in a triangular shape so that the rear end of the insertion tube 14 becomes the top in the axial direction.
  • an opening 20 for inserting an intraocular lens is formed.
  • the cartridge body 12 is formed with a through-hole 22 penetrating from the insertion port 20 to the discharge port 16 so that the intraocular lens can move to the discharge port 16 by passing the insertion port 20 through the insertion tube 14.
  • cutouts 24 and 26 for removing the forceps from the through-hole 22 after inserting the intraocular lens with the forceps into the through-hole 22 from the insertion opening 20 are provided in the through-hole 22. It is formed penetrating vertically.
  • a flat portion 28 is formed at the upper end.
  • An intermediate portion between the distal end portion and the rear end portion of the cartridge main body 12 is formed in a conical shape such that the rear end of the cartridge main body 12 has a large diameter at the rear end up to substantially the center of the cartridge main body 12. ing.
  • a cylindrical portion 30 is formed on the upper surface of the intermediate portion of the cartridge body 12, and the distance between the outer surface of the cylindrical portion 30 and the inner surface of the through hole 22, that is, the thickness of the cylindrical portion 30 is substantially constant.
  • a flat portion 32 is formed on the left and right sides of the cylindrical portion 30.
  • a substantially central force of the cartridge body 12 is also provided with a flat portion 34 at the rear.
  • wing portions 36 and 38 extending in a plate shape in the left-right direction are formed.
  • a step portion 40 is formed to protrude upward from the upper surface of the wing portion 38 and to the right side force of the cartridge body 12 to the right behind a substantially central force in the front-rear direction of the wing portion 38.
  • grip portions 42, 42 extending in the vertical direction are formed at the ends of the wing portions 36, 38.
  • the upper surface of the cartridge body 12 is provided with a display Ml from the flat portion 28 at the rear end of the cartridge body 12 to the cylindrical portion 30 at the middle of the cartridge body 12.
  • This display Ml shows the planar shape of the intraocular lens that is double-folded so that both loops of the intraocular lens extend outward, and the bent portion of the intraocular lens is displayed on the right side. It has been.
  • a display M2 in a shape obtained by reducing the above display Ml is provided.
  • a display M3 for displaying predetermined characters or the like is provided on the upper surface of the step portion 40 of the wing portion 38.
  • FIG. 2A is a cross-sectional view taken along line AA of FIG. 1D
  • FIG. 2B is a cross-sectional view taken along line BB of FIG. 1D.
  • a groove 46 is formed which is inclined from the rear end of the insertion port 20 toward the discharge port 16 side to the inner surface of the through hole 22.
  • the groove 46 is provided on the handpiece of the intraocular lens insertion device, and has a shape in which a plunger can enter, and is formed behind the proximal end of the insertion tube 14.
  • the bottom surface 46a of the groove 46 is formed to be inclined from the rear end of the insertion opening 20 to the inner surface of the through hole 22. That is, the groove 46 is formed to be inclined with respect to the inner surface of the through hole 22 so as to gradually become shallower from the inlet 20 toward the outlet 16.
  • the groove 46 is inserted in this embodiment.
  • a gap is formed between the bottom surface 46 a of the groove 46 and the inner surface of the through hole 22 from the bottom surface 46 a of the groove 46 so that the right end as one side end of the tip of the plunger is formed. It is formed to be located.
  • the left end of the plunger which is the other end, is located inside the inner surface of the through hole 22.
  • the two side surfaces 46b, 46b of the groove 46 are formed at positions equidistant from the center line of the through hole 22 in the vertical direction, respectively, and substantially parallel to the center line of the through hole 22.
  • the groove 46 is inclined so that the space between the two side surfaces 46b and 46b becomes wider toward the rear end. It is formed.
  • the groove 46 is formed such that the distance between the two side surfaces 46b, 46b is greater than the vertical thickness of the plunger.
  • the distance between the two side surfaces 46b, 46b of the groove 46 is set so that the intraocular lens normally inserted into the through hole 22 from the insertion port 20 does not fall into the groove 46 and change the curvature of the intraocular lens. That is, the width of the groove 46 is formed to be smaller than the inner diameter of the through hole 22 at the portion where the groove 46 is formed.
  • the groove 46 formed on the right side of the through hole 22 of the cartridge main body 12 is provided at the rear end of the insertion tube 14 at the rear end of the insertion tube 20 so that the rear end force of the insertion port 20 is also directed to the discharge port 16 side.
  • the groove 46 is formed from the insertion opening 20 to a position between the insertion opening 20 and a position where the center of the intraocular lens inserted from the insertion opening 20 is in contact with the eye, the eye inserted from the insertion opening 20 is formed. The inner lens does not fall into the groove 46.
  • FIG. 3 is an enlarged view of the grip portion 42 of FIG. FIG. 3 (a) is a top view of the grip 42, and FIG. 3 (b) is a side view of the grip 42.
  • the left and right grips 42, 42 are formed so that the cartridge 10 can be gripped with the thumb of one hand and the index finger.
  • the left and right outer surfaces of the gripping portions 42, 42 are formed in a concave shape so as to substantially match the shape of the abdomen of the fingertip.
  • a plurality of grooves 48 are formed in the left and right outer surfaces of the gripping portions 42, 42 in the vertical direction.
  • FIG. 4 is a diagram showing a cross-sectional shape of the through hole 22 formed in the cartridge body 12 between the inlet 20 and the outlet 16.
  • the insertion port 20 at the rear end of the cartridge body 12 is formed in an oval shape having a long axis in the left-right direction and a short axis in the up-down direction.
  • the cross section between the outlet 16 of the insertion tube 14 of the cartridge body 12 and the base end of the insertion tube 14 is formed in a circular shape.
  • the cross section between the insertion port 20 and the base end of the insertion tube 14 is such that the upper straight portion of the insertion port 14 converges linearly at the upper end of the cross section of the base end of the insertion tube 14, and The portion is formed in an oval shape so as to converge linearly at the lower end of the base end section of the insertion tube 14.
  • FIG. 5 is a diagram showing the intraocular lens 50.
  • FIG. 5 (a) is a front view of the intraocular lens 50
  • FIG. 3 (b) is a side view of the intraocular lens 50.
  • the intraocular lens 50 is formed in a flattened circular shape, and includes an optical section 52 that functions as a crystalline lens in the eyeball, and two loops 54 formed in a linear shape.
  • the two loops 54, 54 are also directed outward at the two symmetrical positions on the circumference of the optical section 52, and the outer circumferential force of the optical section 52 is separated by a curvature slightly larger than the curvature of the outer circumference of the optical section 52. While extending in an arc.
  • a soft material that can be folded twice such as silicone resin, acrylic resin, rubber, and gel of the mouth opening, may be used.
  • FIG. 6 is a diagram showing a handpiece 60 of the intraocular lens insertion device.
  • the handpiece 60 is constituted by a handpiece body 62 formed in a long cylindrical shape, and a penetrating member 64 provided inside the handpiece body 62 so as to be able to advance and retreat with respect to the handpiece body 62.
  • the insertion member 64 is formed in a cylindrical shape and is engaged with the handpiece main body 62 so as to be able to advance and retreat, and an intraocular lens 50 provided at the front of the insertion member main body 66 and loaded in the cartridge 10.
  • a plunger 68 for discharging the fluid to the outside of the cartridge 10.
  • the tip of the plunger 68 is formed in a substantially flat surface as shown in FIG.
  • FIG. 7 is a diagram showing the handpiece 60 and the cartridge 10 of the intraocular lens insertion device.
  • the handpiece main body 62 is provided with guide paths 72, 72 for guiding the cartridge 10, and locking pieces 74, 74 for detachably locking the wings 36, 38 of the cartridge 10.
  • the inside of the through hole 22 of the cartridge 10 is filled with a viscoelastic substance such as an ophthalmic hyaluronic acid preparation using an injector 82 or the like.
  • FIG. 9 there is provided a mechanism that can store and store the intraocular lens 50 and can double-fold the intraocular lens 50 when the intraocular lens 50 is used.
  • the intraocular lens 50 is double-folded so that the loops 54 and 54 are both extended outward using a storage container 84 or the like.
  • the double-folded intraocular lens 50 was folded twice. Hold it in position and clamp it with forceps 88 etc.
  • the cartridge is positioned so that the front end of the cartridge 10 is on the front side and the indications Ml and M2 of the intraocular lens 50 displayed on the cartridge 10 are on the upper side. It is gripped by the gripping portions 42, 42 on the left and right of the dice 10.
  • the intraocular lens 50 is inserted from one of the loops 54 into the ⁇ entrance 20 so that the bent portion of the intraocular lens 50 sandwiched by the forceps 88 is on the right side. I do.
  • the intraocular lens 50 is inserted into the through hole 22 from the entrance 20 with the forceps 88, and the intraocular lens 50 is loaded inside the through hole 22.
  • the cartridge is positioned so that the front end of the cartridge 10 is on the front side and the indications Ml and M2 of the intraocular lens 50 displayed on the cartridge 10 are on the top.
  • the wings 36, 38 of the handpiece 60 are placed on the guideways 72, 72 of the handpiece 60, and the cartridge 10 is pressed forward, and the wings 36, Lock 38.
  • the penetrating member 66 of the handpiece 60 is advanced with respect to the handpiece body 62, and the distal end of the plunger 68 of the penetrating member 66 is placed on the rear end surface of the intraocular lens 50. Abut. Since the plunger 68 enters the groove 46 of the cartridge 10, the right end of the tip of the plunger 68 is located to the right of the right end surface of the intraocular lens 50, and the right end of the tip of the plunger 68 is It contacts the rear end surface of the intraocular lens 50. Until the plunger 68 contacts the rear end surface of the intraocular lens 50, the right end of the tip of the plunger 68 does not contact the bottom surface 46a of the groove 46. The plunger 68 comes into contact with the bottom surface 46a of the groove 46 in the process of pushing the intraocular lens 50 toward the outlet 16, and is urged to the right side inside the through hole 22.
  • the insertion tube 14 of the cartridge 10 is inserted into the eyeball E from the incised wound I so that the outlet 16 faces downward.
  • the handpiece main body 62 is fixed with one hand, the insertion member 66 is advanced with the other hand, and the eyeball E Start inserting the intraocular lens 50 into the capsular bag C inside.
  • the handpiece main body 62 is rotated clockwise in accordance with the movement of the intraocular lens 50 to open, and the insertion member 66 is further advanced, so that the capsular bag in the eyeball E is moved. Complete the insertion of intraocular lens 50 into C.
  • It has a hole 22 and a plunger 68 that presses the inserted intraocular lens 50 and also discharges the output 16 force
  • the through hole 22 has a groove 46 formed so that the plunger 68 can enter.
  • the groove 46 is formed so as to be inclined with respect to the inner surface of the through hole 22 so as to gradually become shallower from the inlet 20 toward the outlet 16. Further, the groove 46 is formed from the ⁇ inlet 20 to the space between the ⁇ inlet 20 and the center of the through hole 22.
  • the through hole has a groove formed so that the plunger can enter, and this groove is formed to be inclined with respect to the inner surface of the through hole so as to gradually become shallower from the insertion port toward the discharge port. Therefore, when the intraocular lens 50 is inserted from the entrance 20 into the through hole 22, the intraocular lens 50 bends substantially in accordance with the curvature of the through hole, and the plunger 68 is formed in the groove 46 formed in the through hole 22. By invading the plunger 68, the end of the plunger 68 at the insertion port 20 extends outward in a direction parallel to the posterior end face of the intraocular lens 50.
  • the rear end surface of the intraocular lens 50 can be pressed near the center, and the accuracy of preventing damage to the intraocular lens 50 due to the distal end of the plunger 68 riding on the intraocular lens 50 can be increased. it can. Further, since the groove 46 is formed so as to be inclined with respect to the inner surface of the through hole 22 so that the force of the insertion port 20 is gradually reduced toward the discharge port 16, the stress acting on the intraocular lens 50 is large. At the outlet 16 side, the groove 46 does not damage the intraocular lens
  • the intraocular lens 50 When the groove 46 is formed from the ⁇ entrance 20 to the position between the ⁇ entrance 20 and the position where the center of the intraocular lens 50 inserted from the ⁇ entrance 20 is in contact, the intraocular lens 50 is When the intraocular lens 50 is inserted from the insertion port 20 into the through hole 22, the intraocular lens 50 is curved substantially in accordance with the curvature of the through hole 22 at a portion where the groove 46 is not formed, and the state is due to the rigidity of the intraocular lens 50. By being held, it is possible to prevent the intraocular lens 50 from dropping into the groove 46 when the intraocular lens 50 is not inserted normally when the intraocular lens 50 is inserted into the through hole 22 from the entrance 20. it can.
  • one end of the tip of the plunger 68 is positioned with a gap from the bottom surface 46a of the groove 46 between the bottom surface 46a of the groove 46 and the inner surface of the through-hole 22.
  • the other end of the front end of 68 is configured to be located inside the inner surface of the through hole 22, so that the end of the plunger 68 can form a gap with the bottom surface 46 a of the groove 46 at the insertion port 20.
  • the intraocular lens 50 normally inserted from the entrance 20 into the through-hole 22 falls into the groove 46 and the curvature of the intraocular lens 50 It does not cause any change.
  • the cartridge 10 includes a cartridge 10 into which the intraocular lens 50 is loaded, and a handpiece 60 that detachably supports the cartridge 10 and has a plunger 68. Since the cartridge 10 is provided in the cartridge 10, the cartridge 10 having the inlet 20, the outlet 16, and the through-hole 22 can be disposed separately from the node piece 60, so that the cartridge 10 can be discarded and sanitary. Excellent.
  • the distal end of the plunger 68 is configured to be substantially flat, and a part of the distal end of the plunger is in the form of an eye, for example, as in the invention disclosed in Patent Document 3. Since it does not go under the inner lens, the inner cross-sectional area near the outlet 16 can be made smaller. Therefore, the outer diameter of the outlet 16 can be reduced, and the incision wound on the eyeball can be made smaller, so that the burden on the patient can be reduced.
  • the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.
  • an example of the intraocular lens insertion device has been described in which the cartridge and the handpiece are configured to be detachable, but the present invention is configured such that the cartridge and the handpiece are integrated and cannot be detached. It can also be applied to the intraocular lens insertion device described as follows.

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  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

L'invention concerne un dispositif d'insertion de lentille intraoculaire permettant d'empêcher, avec une certitude accrue, l'endommagement d'une lentille intraoculaire par la partie pointe d'un piston qui se déplace sur ladite lentille intraoculaire. Ledit dispositif d'insertion de lentille intraoculaire comprend un orifice d'insertion (20) dans lequel la lentille intraoculaire (50) est insérée, un orifice de décharge (16) à partir duquel la lentille intraoculaire (50) est déchargée, un trou traversant (22) reliant l'orifice d'insertion (20) à l'orifice de décharge (16) et un piston (68) pressant la lentille intraoculaire (50) insérée à partir de l'orifice d'insertion (20) et la déchargeant à partir de l'orifice de décharge (16). Une rainure (46) est formée dans le trou traversant (22) de sorte que le piston (68) peut y être introduit. Ladite rainure est formée oblique par rapport à la surface intérieure du trou traversant (22) afin d'être progressivement moins profonde de l'orifice d'insertion (20) vers l'orifice de décharge (16).
PCT/JP2005/000576 2004-01-27 2005-01-19 Dispositif d'insertion de lentille intraoculaire et sa cartouche WO2005070341A1 (fr)

Priority Applications (1)

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JP2005517244A JP4707016B2 (ja) 2004-01-27 2005-01-19 眼内レンズ挿入装置及びそのカートリッジ

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JP2004-018924 2004-01-27
JP2004018924 2004-01-27

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Cited By (33)

* Cited by examiner, † Cited by third party
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JP2007526091A (ja) * 2004-03-02 2007-09-13 アドバンスト メディカル オプティクス， インコーポレーテッド 眼内レンズを保管、装填および送達するためのデバイスおよび方法
JP2008043473A (ja) * 2006-08-11 2008-02-28 Kowa Co 眼内レンズの挿入器具
EP2074961A1 (fr) * 2007-12-29 2009-07-01 Nidek Co., Ltd. Instrument d'injection de lentille intraoculaire
WO2009154187A1 (fr) 2008-06-17 2009-12-23 Hoya株式会社 Instrument pour l’insertion de lentille intraoculaire
US7879090B2 (en) 2006-12-13 2011-02-01 Bausch & Lomb Incorporated Intraocular lens injector apparatus and methods of use
US7901414B2 (en) 2001-12-12 2011-03-08 Ioltechnologie-Production Cassette and injector for flexible intraocular lens and method for injecting such lenses
US8048085B2 (en) 2004-03-02 2011-11-01 Abbott Medical Optics Inc. Devices and methods for storing, loading, and delivering an intraocular lens
US8273122B2 (en) 2008-06-23 2012-09-25 Abbott Medical Optics Inc. Pre-loaded IOL insertion system
US8435289B2 (en) 2005-02-11 2013-05-07 Abbott Medical Optics Inc. Rapid exchange IOL insertion apparatus and methods of using
US8460311B2 (en) 2004-12-27 2013-06-11 Hoya Corporation Intraocular lens implanting device
US8470032B2 (en) 2008-09-04 2013-06-25 Hoya Corporation Intraocular lens insertion device
US8475528B2 (en) 2007-05-30 2013-07-02 Hoya Corporation Intraocular lens insertion device
US8523941B2 (en) 2005-12-08 2013-09-03 Hoya Corporation Instrument for inserting intraocular lens
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US8545512B2 (en) 2005-01-26 2013-10-01 Hoya Corporation Intraocular lens insertion device
US8562674B2 (en) 2005-02-11 2013-10-22 Abbott Medical Optics Inc. Front loading IOL insertion apparatus and method of using
US8574239B2 (en) 2005-09-28 2013-11-05 Hoya Corporation Intraocular lens insertion device
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US8647382B2 (en) 2010-06-10 2014-02-11 Hoya Corporation Ocular implant insertion apparatus and methods
US8702794B2 (en) 2008-04-28 2014-04-22 Abbott Medical Optics Inc. Back loaded IOL insertion cartridge
US8702795B2 (en) 2008-08-21 2014-04-22 Hoya Corporation Intraocular lens inserting device
JP2014100558A (ja) * 2012-10-26 2014-06-05 Santen Pharmaceut Co Ltd 眼内レンズ用インジェクタ
US8747465B2 (en) 2007-05-30 2014-06-10 Hoya Corporation Intraocular lens insertion device
US9114006B2 (en) 2007-07-11 2015-08-25 Hoya Corporation Intraocular lens insertion device and method for controlling movement of the intraocular lens
WO2016017772A1 (fr) * 2014-07-30 2016-02-04 興和株式会社 Instrument d'insertion d'une lentille intraoculaire
US9326847B2 (en) 2010-04-08 2016-05-03 Hoya Corporation Ocular implant insertion apparatus and methods
US9339374B2 (en) 2005-02-11 2016-05-17 Abbot Medical Optics Inc. Intraocular lens insertion apparatus and lens case
US9549813B2 (en) 2010-08-24 2017-01-24 Abbott Medical Optics Inc. Inserter cap and related features
US9554894B2 (en) 2008-06-05 2017-01-31 Hoya Corporation Intraocular lens insertion device and cartridge
WO2017047714A1 (fr) * 2015-09-16 2017-03-23 Hoya株式会社 Outil d'insertion de lentille intraoculaire
US10799339B2 (en) 2015-09-16 2020-10-13 Hoya Corporation Intraocular lens injector
US11033382B2 (en) 2016-06-28 2021-06-15 Hoya Corporation Intraocular lens injector
US12076231B2 (en) 2018-05-25 2024-09-03 Hoya Corporation Intraocular lens injector

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JPH11113939A (ja) * 1997-08-11 1999-04-27 Canon Star Kk 眼内挿入用レンズの挿入器具
JP2002516709A (ja) * 1998-06-02 2002-06-11 アルコン ラボラトリーズ，インコーポレイティド 改良プランジャー
WO2002074208A2 (fr) * 2001-03-19 2002-09-26 Advanced Medical Optics, Inc. Dispositif d'insertion de lentille intra-oculaire pourvu d'une structure d'engrenement de lentille intra-oculaire et procede d'utilisation correspondant

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JPH11113939A (ja) * 1997-08-11 1999-04-27 Canon Star Kk 眼内挿入用レンズの挿入器具
JP2002516709A (ja) * 1998-06-02 2002-06-11 アルコン ラボラトリーズ，インコーポレイティド 改良プランジャー
WO2002074208A2 (fr) * 2001-03-19 2002-09-26 Advanced Medical Optics, Inc. Dispositif d'insertion de lentille intra-oculaire pourvu d'une structure d'engrenement de lentille intra-oculaire et procede d'utilisation correspondant

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US7901414B2 (en) 2001-12-12 2011-03-08 Ioltechnologie-Production Cassette and injector for flexible intraocular lens and method for injecting such lenses
US8506575B2 (en) 2004-03-02 2013-08-13 Abbott Medical Optics Inc. Devices and methods for storing, loading, and delivering an intraocular lens
JP2007526091A (ja) * 2004-03-02 2007-09-13 アドバンスト メディカル オプティクス， インコーポレーテッド 眼内レンズを保管、装填および送達するためのデバイスおよび方法
US8048085B2 (en) 2004-03-02 2011-11-01 Abbott Medical Optics Inc. Devices and methods for storing, loading, and delivering an intraocular lens
JP4749413B2 (ja) * 2004-03-02 2011-08-17 アボット・メディカル・オプティクス・インコーポレイテッド 眼内レンズを保管、装填および送達するためのデバイスおよび方法
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US9339374B2 (en) 2005-02-11 2016-05-17 Abbot Medical Optics Inc. Intraocular lens insertion apparatus and lens case
US9861470B2 (en) 2005-02-11 2018-01-09 Abbott Medical Optics Inc. IOL insertion apparatus
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US8252053B2 (en) 2006-12-13 2012-08-28 Bausch & Lomb Incorporated Intraocular lens injector apparatus and methods of use
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