Source: https://patents.google.com/patent/US20110288557A1/en
Timestamp: 2019-10-18 07:28:31
Document Index: 23000228

Matched Legal Cases: ['art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art.\n5']

US20110288557A1 - Intraocular Lens Insertion Device - Google Patents
US20110288557A1
US20110288557A1 US13/143,322 US201013143322A US2011288557A1 US 20110288557 A1 US20110288557 A1 US 20110288557A1 US 201013143322 A US201013143322 A US 201013143322A US 2011288557 A1 US2011288557 A1 US 2011288557A1
US8603103B2 (en
FIG. 4 is a set of diagrams showing a usage state (1) of the intraocular lens insertion device of the first embodiment of the present invention, in which (A) is a cross sectional top view, and (B) is a longitudinal sectional view.
FIG. 5 is a set of diagrams showing a usage state (2) of the intraocular lens insertion device of the first embodiment of the present invention, in which (A) is a cross sectional top view, and (B) is a longitudinal sectional view.
FIG. 6 is a set of diagrams showing a usage state (3) of the intraocular lens insertion device of the first embodiment of the present invention, in which (A) is a cross sectional top view, and (B) is a longitudinal sectional view.
FIG. 7 is a set of diagrams showing a usage state (4) of the intraocular lens insertion device of the first embodiment of the present invention, in which (A) is a cross sectional top view, and (B) is a longitudinal sectional view.
FIG. 8 is a set of diagrams showing a usage state (5) of the intraocular lens insertion device of the first embodiment of the present invention, in which (A) is a cross sectional top view, and (B) is a longitudinal sectional view.
FIG. 10 is a set of diagrams showing a usage state (1) of an intraocular lens insertion device of the second embodiment of the present invention, in which (A) is a cross sectional top view, and (B) is a longitudinal sectional view.
FIG. 11 is a set of diagrams showing a usage state (2) of the intraocular lens insertion device of the second embodiment of the present invention, in which (A) is a cross sectional top view, and (B) is a longitudinal sectional view.
FIG. 12 is a set of diagrams showing a usage state (3) of the intraocular lens insertion device of the second embodiment of the present invention, in which (A) is a cross sectional top view, and (B) is a longitudinal sectional view.
FIG. 15 is a set of diagrams showing a usage state (1) of an intraocular lens insertion device of the third embodiment of the present invention, in which (A) is a cross sectional top view, and (B) is a longitudinal sectional view.
FIG. 16 is a set of diagrams showing a usage state (2) of the intraocular lens insertion device of the third embodiment of the present invention, in which (A) is a cross sectional top view, and (B) is a longitudinal sectional view.
FIG. 17 is a set of diagrams showing a usage state (3) of the intraocular lens insertion device of the third embodiment of the present invention, in which (A) is a cross sectional top view, and (B) is a longitudinal sectional view.
FIG. 18 is a set of diagrams showing a usage state (4) of the intraocular lens insertion device of the third embodiment of the present invention, in which (A) is a cross sectional top view, and (B) is a longitudinal sectional view.
FIG. 19 is a set of diagrams showing a usage state (5) of the intraocular lens insertion device of the third embodiment of the present invention, in which (A) is a cross sectional top view, and (B) is a longitudinal sectional view.
According to the intraocular lens insertion device 1 having the aforementioned structure, the intraocular lens 5 is placed internally in a manner such that the optical part 6 thereof is arranged in parallel with the lens advancement axis A (FIG. 4). The slider 3 is at first moved to the advancement direction x in order to release the intraocular lens 5 internally placed in advance to the outside from the front end of the nozzle section 11. In this way, the first abutting portion 21 formed on the front end of the slider 3 is caused to abut against the rear supporting portion 7 a (FIG. 5).
Since the first abutting portion 21 has the slanting surface, the rear supporting portion 7 a is pushed up therealong as the slider 3 is further moved to the advancement direction x (FIG. 6). At the same time, the x-direction abutting surfaces 24 of the second abutting portions 22 a, 22 b are caused to abut against as well as push out the optical part 6, thereby moving the intraocular lens 5 from the lens placement section to the transition section 10. At that time, the outer edge of the optical part 6 is pushed by the inner wall of the transition section 10. Further, the lens pressing member 18 is also pushed by the inner wall of the transition section 10, and is thus caused to push down the surface of the optical part 6 to the direction y. In this way, the optical part 6 of the intraocular lens 5 is valley folded.
Next, as the plunger 4 is moved to the advancement direction x, the front end of such plunger 4 supported by the guiding groove 15 of the slider 3 is caused to abut against the outer edge of the optical part 6 (FIG. 7). The rear supporting portion 7 a pushed up by the first abutting portion 21 is thus caused to deform along the plunger 4 in a manner such that a front end of the rear supporting portion 7 a eventually points to the advancement direction x. In this way, the front end of the rear supporting portion 7 a deformed due to the first abutting portion 21, is tucked into the surface of the valley-folded optical part 6.
Next, by further moving the plunger 4 to the advancement direction x, the intraocular lens 5 is moved from the transition section 10 to the nozzle section 11 (FIG. 8), followed by being released to the outside from the front end of the nozzle section 11 with the intraocular lens 5 itself being folded even smaller.
As the slider 30 is further moved to the advancement direction x, the rear supporting portion 7 a is pushed up with x-direction abutting surfaces 24 of the second abutting portion 22 abutting against and pushing out the optical part 6, at the same time, thus allowing the intraocular lens 5 to be moved from a lens placement section to a transition section 10. In this way, the optical part 6 is pushed by an inner wall of the transition section 10, and a surface of the optical part 6 is pushed down to the direction y by means of a lens pressing member 18, thus allowing the optical part 6 to be valley folded (FIG. 10).
Next, as a plunger 4 is moved to the advancement direction x, the front end of such plunger 4 supported by a guiding groove 15 of the slider 3 is caused to abut against the outer edge of the optical part 6 (FIG. 11). The supporting portion 7 pushed up by the first abutting portion 21 is thus caused to deform along the plunger 4 in a manner such that a front end of the supporting portion 7 eventually points to the advancement direction x. In this way, a front end of the supporting portion 7 deformed due to the first abutting portion 21, is tucked into the surface of the valley-folded optical part 6.
Next, by further moving the plunger 4 to the advancement direction x, the intraocular lens 5 is moved from the transition section 10 to a nozzle section 11 (FIG. 12), followed by being released to the outside from a front end of the nozzle section 11 with the intraocular lens 5 itself being folded even smaller.
Next, there are described an operation and effect of the slider 40 having the aforementioned structure. The intraocular lens 5 is placed in a lens placement section (not shown) in a manner such that the optical part 6 thereof is arranged in parallel with the lens advancement axis A (FIG. 15). The slider 40 is at first moved to the advancement direction x in order to release such intraocular lens 5 to the outside from a front end of a nozzle section 11. As a result, the first abutting portion 21 formed on a front end of the slider 40 is caused to abut against the rear supporting portion 7 a (FIG. 16).
Since the first abutting portion 21 has a slanting surface, the rear supporting portion 7 a is pushed up therealong as the slider 40 is further moved to the advancement direction x (FIG. 17). At the same time, the guiding portion 41 serves to push down a surface of the optical part 6 to the direction y, thereby guiding the corresponding optical part 6 to the second abutting portion 22 b. As a result, the x-direction abutting surface 24 of the second abutting portion 22 b and the x-direction abutting surface 24 of the second abutting portion 22 a are caused to abut against and then push out the optical part 6, thus allowing the intraocular lens 5 to be moved from the lens placement section to a transition section 10.
Next, as the plunger 44 is moved to the advancement direction x, the front end of such plunger 44 supported by a guiding groove 15 of the slider 40 is caused to abut against the outer edge of the optical part 6 (FIG. 18). The rear supporting portion 7 a pushed up by the first abutting portion 21 is thus caused to deform along the plunger 44 in a manner such that a front end of the rear supporting portion 7 a eventually points to the advancement direction x. In this way, the front end of the rear supporting portion 7 a deformed due to the first abutting portion 21, is enclosed by the valley-folded surface of the optical part 6.
Next, by further moving the plunger 44 to the advancement direction x, the intraocular lens 5 is moved from a transition section 10 to a nozzle section 11 (FIG. 19), followed by being released to the outside from a front end of the nozzle section 11 with the intraocular lens 5 itself being folded even smaller.
a lens placement section for placing an intraocular lens having an optical part and one or more supporting portions provided on an outer edge of said optical part;
a transition section for deforming said intraocular lens;
a nozzle section for releasing said intraocular lens;
a slider for pushing out said intraocular lens placed in said lens placement section; and
a plunger for releasing said intraocular lens pushed out by said slider from said nozzle section, wherein said slider includes:
a first abutting portion for pushing up said supporting portion arranged on a rear side with respect to a lens advancement axis; and
one or more second abutting portions abutting against an outer edge of a rear portion of said intraocular lens.
2. The intraocular lens insertion device according to claim 1, wherein said second abutting portions are provided outside said first abutting portion with respect to the lens advancement axis.
3. The intraocular lens insertion device according to claim 1, wherein said first abutting portion slants downward in a lens advancement direction.
4. The intraocular lens insertion device according to claim 1, wherein at least one of said second abutting portions includes:
an x-direction abutting surface having a face substantially perpendicular to a surface of said optical part; and
a y-direction abutting surface having a face substantially parallel with the surface of said optical part.
5. The intraocular lens insertion device according to claim 1, further comprising a guiding portion for guiding the outer edge of said optical part to said second abutting portions.
6. The intraocular lens insertion device according to claim 1, wherein said second abutting portions are provided as a left-right pair centered about the lens advancement axis.
7. The intraocular lens insertion device according to claim 2, wherein said first abutting portion slants downward in a lens advancement direction.
8. The intraocular lens insertion device according to claim 2, wherein at least one of said second abutting portions includes:
9. The intraocular lens insertion device according to claim 3, wherein at least one of said second abutting portions includes:
10. The intraocular lens insertion device according to claim 2, further comprising a guiding portion for guiding the outer edge of said optical part to said second abutting portions.
11. The intraocular lens insertion device according to claim 3, further comprising a guiding portion for guiding the outer edge of said optical part to said second abutting portions.
12. The intraocular lens insertion device according to claim 4, further comprising a guiding portion for guiding the outer edge of said optical part to said second abutting portions.
13. The intraocular lens insertion device according to claim 2, wherein said second abutting portions are provided as a left-right pair centered about the lens advancement axis.
14. The intraocular lens insertion device according to claim 3, wherein said second abutting portions are provided as a left-right pair centered about the lens advancement axis.
15. The intraocular lens insertion device according to claim 4, wherein said second abutting portions are provided as a left-right pair centered about the lens advancement axis.
16. The intraocular lens insertion device according to claim 5, wherein said second abutting portions are provided as a left-right pair centered about the lens advancement axis.
US8603103B2 US8603103B2 (en) 2013-12-10
Machine translation WO 2008/149795; WIPO Patentscope 01/28/2013 *