EP0493826B1 - Pincette for an ocular lens - Google Patents

Pincette for an ocular lens Download PDF

Info

Publication number
EP0493826B1
EP0493826B1 EP19910122357 EP91122357A EP0493826B1 EP 0493826 B1 EP0493826 B1 EP 0493826B1 EP 19910122357 EP19910122357 EP 19910122357 EP 91122357 A EP91122357 A EP 91122357A EP 0493826 B1 EP0493826 B1 EP 0493826B1
Authority
EP
European Patent Office
Prior art keywords
pincette
lens
tip
portions
crossed
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP19910122357
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0493826A1 (en
Inventor
Toyoyasu C/O Menicon Co. Ltd. Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Menicon Co Ltd
Original Assignee
Menicon Co Ltd
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 Menicon Co Ltd filed Critical Menicon Co Ltd
Publication of EP0493826A1 publication Critical patent/EP0493826A1/en
Application granted granted Critical
Publication of EP0493826B1 publication Critical patent/EP0493826B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B9/00—Hand-held gripping tools other than those covered by group B25B7/00

Definitions

  • the invention relates to a pincette for an ocular lens, and more particularly to a pincette which is used on the occasion to deal with an ocular lens such as a contact lens and the like, so as for instance known from US-A-4 192 204 on which the preamble of claim 1 is based.
  • a pincette made of soft material which is substitute for hard material has a shape as shown in Fig. 7.
  • a fulcrum a curved portion 51
  • a point of application a tip portion 52 for pinching a lens
  • a point of force a grip portion 53
  • a stopper 54 is formed in an inner side of the grip portion 53. Then the pincette is intended not to close exceeding a certain length.
  • the grip portion 53 when the pincette is inserted into a case for storing a contact lens having a mouth of small diameter, the grip portion 53 must be closed to a certain extent (referring to Fig. 8). Accordingly, it is restricted to open and close the tip portion 52 for pinching the lens which is located in the bottom of the case for storage. Then it is very difficult to pinch the lens.
  • the grip portion 53 is pinched by a finger and a thumb, a stroke of the tip portion 52 becomes longer than that of the grip portion 53. Therefore, it is difficult to perform such a fine work as to deal with the contact lens and the like.
  • the users tend to pinch a portion located in the neighborhood of the tip portion 52 of the pincette when the users perform the above-mentioned fine work. In such a case, there is a probability to damage the contact lens by pressing the tip portion after the stopper 54 which is formed in the inner side of the grip portion 53 is coming into contact with the another side of the grip portion 53.
  • the object of the present invention is to resolve the above described problems, and to provide such a pincette for an ocular lens that the pincette can take out a lens from a case for storage having a small mouth, preventing the lens from being damaged when the lens is pinched and be easily handled.
  • a pincette for ocular lenses as defined by the combination of features of claim 1.
  • each arm portion of the pincette is thinned.
  • said curved portion has a smaller thickness and a narrower width compared with the arm portion.
  • ocular lens is a concept including a contact lens or an intraocular lens.
  • the tip portion of the pincette When the grip portion of the pincette is pinched by a thumb and a finger against a resilient force of the curved portion, the tip portion is closed. Then, distances between arm portions from the crossed portion to the tip portion are equal each to each. Accordingly, it is easy to take out the lens from the case having a small mouth. Since the stoppers which are formed in the neighborhood of the crossed portion contact each other, the force of closing the arms is not transmitted to the tip portion beyond a restriction by the stopper.
  • the portions except for the grip portion that is to say, the portions near the tip portion are not pinched by users since the grip portion, is clearly defined in such a manner as to be distinguished from the crossed portion. Accordingly, the stoppers near the crossed portions always function effectively.
  • the tip portion and the grip portion are formed in such a manner that the crossed portion is located between the tip portion and the grip portion, the stroke of closing the tip portion is shorter than that of pinching the grip portion, or the stroke of closing the tip portion is almost the same as that of pinching the grip portion.
  • the pincette 1 shown in Fig. 1 has such a shape that a belt-like-shaped-plate member is curved and folded.
  • a pair of arms 3 which are continuous via a curved portion 2 cross each other and are fulcrumed in the neighborhood of the central portion of the pincette.
  • the portions between the curved portion 2 and a crossed portion 4 of the arms 3 define a grip portion 5 of the pincette 1.
  • Each of the crossed portions 4 of the arms 3 is formed in such a manner that each crossed portion 4 has a face perpendicular to another portion of the arm 3.
  • a hole 6 for a pin 7 is formed in approximately the center of one of the crossed portions (referring to Fig. 3), and in another hole 6 in which is inserted a portion of the pin is formed in another crossed portion.
  • the pin 7 is the fulcrum of the crossed portions 4.
  • the curved portion 2 of the pincette 1 is biased so that its tip portions 8 can always be opened by means of elastic force. If the grip portions 5 are pinched, the tip portions 8 are closed. Since the pincette 1 has a crossed portion 4, each distance between arm portions located from the crossed portion 4 to the tip portions 8 is almost the same. Accordingly, the case for storage having the above-mentioned small mouth can be easily inserted by the pincette. Furthermore, since the tip portions 8 are curved in such a manner as to converge (or be inwardly disposed), a lens can be securely retained.
  • the lens can be easily taken out from the above-mentioned case having a small mouth.
  • first stoppers 9 (referring to Fig. 3) which are defined in the arms 3 in the upper side (the end portion of the curved portion side) of the crossed portion 4 are coming into contact with each other and/or second stoppers 10 which are defined in the arms 3 in the lower side (the end portion of the tip portion side) are coming into contact with each other. Therefore, when the grip portion 5 is pinched strongly enough to exceed the state that the first stoppers 9 are coming into contact with each other, the grip portion 5 is bent and the tip portion 8 is never closed by pinching the grip portion 5. Then, the pinched lens is not damaged.
  • the grip portion 5 is defined in such a manner as to be distinguished from the crossed portion 4 which is a distinct portion, the tip portion is never pinched. Then, the effect of the stopper is never lost like in a conventional pincette.
  • the pincette 1 in accordance with the present invention is provided with the crossed portions 4 located in the place where a stroke of pinching the grip portions 5 is longer than that of closing the tip portions 8, or the stroke of pinching the grip portions 5 is almost the same as the stroke of closing the tip portions 8. Therefore, it is easy to perform such a fine work as to deal with a lens.
  • the arm portions 3 are thinned in the place from the crossed portion 4 to the tip portions 8 (referring to Fig. 3), the arm portions 3 are easily bended and prevent the lens from transmitting excessive force.
  • the thickness T of the tip portions 8 is not more than half of the thickness W of another part of the arm portions 8 (referring to Fig. 3). Furthermore, it is preferable that the tip portions 8 have a round shape (or the tip portions 8 have their edge portions chamfered) so as not to damage the lens even in case of coming into contact with the lens. Especially, in view of easiness of producing it is preferable that each tip portion 8 has a disk-like shape as shown in Fig. 1, or a ring like shape as shown in Fig. 5, or a spherical shape as shown in Fig. 6. The tip portions 8 have a size not to be difficult to pinch a lens. Generally, the maximum width of the tip portions 8 is approximately 2 to 10 mm. As shown in Figs. 1 to 4, the width of the curved portion 2 located in the place from the back side is narrowed gradually and the thickness of the curved portion is thinned little by little.
  • the pincette 1 As material of the pincette 1 it is preferable to employ a hydrophobic soft material not to easily become dirty. For instance, polyethylene, polybutadiene, polypropylene, polyester, urethane elastomer, silicone elastomer and the like can be employed.
  • the grip portion is provided with a serrated or warty antislipping portion so that the thumb and the finger do not slip when the pincette is handled, the pincette can be still more easily handled.
  • the pincette in accordance with the present invention is very easy to be deal. Further, the pincette has the advantage that injection molding is easily performed since the pincette has a simple shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)
EP19910122357 1991-01-04 1991-12-30 Pincette for an ocular lens Expired - Lifetime EP0493826B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP21/91U 1991-01-04
JP1991000021U JPH0736649Y2 (ja) 1991-01-04 1991-01-04 眼用レンズ用ピンセット

Publications (2)

Publication Number Publication Date
EP0493826A1 EP0493826A1 (en) 1992-07-08
EP0493826B1 true EP0493826B1 (en) 1994-08-10

Family

ID=11462751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910122357 Expired - Lifetime EP0493826B1 (en) 1991-01-04 1991-12-30 Pincette for an ocular lens

Country Status (5)

Country Link
EP (1) EP0493826B1 (enrdf_load_stackoverflow)
JP (1) JPH0736649Y2 (enrdf_load_stackoverflow)
AU (1) AU642569B2 (enrdf_load_stackoverflow)
CA (1) CA2058600A1 (enrdf_load_stackoverflow)
DE (1) DE69103391T2 (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348358A (en) * 1993-02-22 1994-09-20 Selick David A Contact lens insertion tool
DE102004006805A1 (de) * 2004-02-11 2005-09-08 Sirona Dental Systems Gmbh Ärztliches oder zahnärztliches Handinstrument
US8053078B2 (en) * 2005-04-11 2011-11-08 Abbott Medical Optics Inc. Medical devices having soft, flexible lubricious coatings
JP5006440B2 (ja) * 2010-12-20 2012-08-22 齊藤 和子 コンタクトレンズ着脱器具
CN106389003B (zh) * 2016-10-18 2018-09-21 尹振图 隐形眼镜摘取器
RU199912U1 (ru) * 2020-03-03 2020-09-25 федеральное государственное автономное учреждение "Национальный медицинский исследовательский центр "Межотраслевой научно-технический комплекс "Микрохирургия глаза" имени академика С.Н. Федорова" Министерства здравоохранения Российской Федерации Пинцет для позиционирования опорных элементов иридохрусталиковой диафрагмы при ее транссклеральной фиксации
RU199910U1 (ru) * 2020-03-03 2020-09-25 федеральное государственное автономное учреждение "Национальный медицинский исследовательский центр "Межотраслевой научно-технический комплекс "Микрохирургия глаза" имени академика С.Н. Федорова" Министерства здравоохранения Российской Федерации Инжектор для имплантации микроклипсы для клипирования сосудов сетчатки
DE102022124152A1 (de) * 2022-09-20 2024-03-21 Silke Sterkel Handwerkzeug zum Öffnen von Folienverpackungen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1603752A1 (de) * 1966-03-24 1970-05-27 Paul Drees Selbstschliessende zangenartige Vorrichtung zum voruebergehenden Festhalten und Aufhaengen von Teilen
FR2387731A1 (fr) * 1977-04-19 1978-11-17 Ygfors Goran Procede pour la realisation d'un outil
US4170661A (en) * 1977-11-30 1979-10-09 American Hospital Supply Corporation Method of treating intraocular lens and the like
US4192204A (en) * 1978-08-03 1980-03-11 Feldman Michael A Soft contact lens apparatus
JPS55103158U (enrdf_load_stackoverflow) * 1979-01-08 1980-07-18
JPS6015650U (ja) * 1983-07-11 1985-02-02 トヨタ自動車株式会社 エンジンセンタ−確認用重錘器
US4823792A (en) * 1987-05-11 1989-04-25 Andrew Tool Company Gripping device and locking mechanism for use therewith
JPH0346748Y2 (enrdf_load_stackoverflow) * 1987-06-20 1991-10-03
JPH01285254A (ja) * 1988-05-11 1989-11-16 Andrew Tool Co 締付け装置及びそれに使用するロック装置

Also Published As

Publication number Publication date
AU9012891A (en) 1992-07-09
CA2058600A1 (en) 1992-07-05
JPH0495024U (enrdf_load_stackoverflow) 1992-08-18
JPH0736649Y2 (ja) 1995-08-23
DE69103391T2 (de) 1994-12-08
AU642569B2 (en) 1993-10-21
EP0493826A1 (en) 1992-07-08
DE69103391D1 (de) 1994-09-15

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