JPH0736649Y2 - Tweezers for eye lens - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to tweezers for ophthalmic lenses. More specifically, the present invention relates to tweezers used when handling eye lenses such as contact lenses.

[0002]

2. Description of the Related Art Conventionally, when handling a contact lens or the like, the contact lens is pinched by fingers or tweezers made of a hard material such as stainless steel or ABS resin is used. However, this often damages the contact lens. Further, it has been attempted to protect the contact lens by coating the tip of stainless steel tweezers with a soft resin such as Teflon, but this method is not fully satisfactory.

Therefore, tweezers made of a soft material instead of a hard material have been proposed. As shown in FIG. 7, this one has the same overall shape as a general tweezers, and has a fulcrum (curved part (51)) and an action point (the tip part (52) that sandwiches the lens) at both ends. , There is an emphasis point (grip part (53)) between them. A stopper (54) is formed inside the grip (53) to prevent the tweezers from closing more than a certain amount.

[0004]

[Problems to be Solved by the Invention] In the conventional tweezers, when the lens is inserted by inserting it into a lens storage container having a small mouth, and when the tip portion (52) of the tweezers is inserted into the container, a grip ( 53) side must be closed to some extent (Fig. 8
(See), the degree of freedom of opening and closing the tip portion (52) for pinching the lens at the bottom of the container is small, and it is very difficult to pinch. Further, when the grip portion (53) is pinched, the stroke of the tip end portion (52) is larger than the stroke of the grip portion (53), and it is difficult to perform the detailed work of handling a contact lens or the like. Furthermore, since the detailed work is performed as described above, the user wears the tip of the tweezers close to the contact lens.
(52) May pinch the vicinity. In that case, grip part (53)
Even after the stopper (54) provided on the inside of the
The contact lens may be damaged by applying force to the tip.

The present invention has been made in order to solve the above problem, the lens can be easily taken out from a container with a small mouth, the lens sandwiched can be prevented from being damaged, and the lens can be handled. The purpose is to provide easy tweezers.

[0006]

The tweezers for an ophthalmic lens of the present invention comprises a pair of arms whose rear ends are continuous with each other through a curved portion having elasticity and which intersect each other and are axially supported. It is characterized in that a stopper is formed at least on the tip end side of the intersection of the arms so as to contact each other when the arms are closed.

The tweezers are preferably made of a non-hydrous soft material, particularly a molding material having elasticity.

Further, it is preferable that the tip of the arm is thin.

Further, it is preferable that the curved portion is thinner than the arm and has a narrow width.

The ophthalmic lens referred to in the claims of utility model is a concept including a contact lens and an intraocular lens.

[0011]

[Function] When the grip portion is pinched against the elastic force of the bending portion, the distal end portion is closed. At that time, at least the distal end portion at the intersection of the arms
When the stoppers formed on the side contact each other , the arms are opened at substantially the same degree from the intersection to the tip, so that the lens can be easily taken out from a container with a small mouth.
Further, the stopper with each other is not transmitted any more closing force the distal end portion so contact. Therefore, the lens is not damaged. Further, since the grip portion is clearly partitioned at the intersection, the user does not pinch the portion other than the grip portion, that is, the vicinity of the tip, so that the stopper on the tip side of the intersection always functions effectively.

Further, since the tip portion and the grip portion are formed so as to sandwich the intersecting portion, the closing stroke of the tip portion is smaller than or substantially the same as the knob stroke, so that it is easy to operate.

[0013]

The tweezers of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an embodiment of the tweezers of the present invention, FIG. 2 is a front view showing a state in which the tip end of the tweezers of FIG. 1 is closed, and FIG. 3 is a front view of the tweezers of FIG. 1 before assembling. FIG. 4 is a plan view of the tweezers of FIG. 1 seen from the direction of the arrow (A), and FIGS. 5 to 6 are perspective views showing an example of the tip end shape of the tweezers of the present invention.

The tweezers (1) shown in FIG. 1 has a shape in which a strip-shaped member is entirely curved and folded in half, and a pair of arms (3) continuous through a curved portion (2). They are crossed around each other and pivotally supported. The portion between the curved portion (2) and the crossing portion (4) of the arm (3) constitutes the grip portion (5) of the tweezers (1).

Each intersection (4) of the arms (3) is
Is formed in a plate shape that is perpendicular to the other portions. Then, a pin hole (6) is bored in the center of one of the intersections (4) (see Fig. 3), and a pin portion (7) protruding from the other intersection (4) is inserted therein. It is rotatably supported. The bending part (2) is always biased by its elastic force so that the tip part (8) opens, and when the grip part (5) is pinched, the tip part (8) is
Closes. By having the intersection (4) in this way, as shown in FIG. 2, when the tip (8) is closed, the degree of opening from the intersection (4) to the tip (8) becomes almost the same. Therefore, it can be easily inserted even in a lens storage container having a small mouth. Since the tip portion (8) is slightly curved inward, the lens can be securely held. Moreover, at this time, the same as the second stopper (10) described later.
When the technician makes contact, the cross section (4)
Since the opening degree is substantially the same, the lens can be easily grasped and taken out from the lens storage container having the small mouth as described above. Further closing the tweezers (1),
The first stopper (9) (see FIG. 3) composed of the arm (3) at the upper end (end on the curved portion side) of the intersection (4) and / or the intersection (4) Arm at the lower end (end on the tip side)
The second stoppers (10) (see FIG. 3) composed of the portion (3) come into contact with each other. That is, the intersection (4) is
Locked on both ends. Also, look at the entire tweezers
For example, as shown in FIG. 3, first, the tips (8) are
2 Stoppers (10) cross each other when they come into contact with each other
The tip end of part (4) is locked, then the first strike
The rear end side of the intersection (4) due to the contact between the uppers (9)
The (curved side) part is locked, so to speak, it is a two-stage lock
Ku is being done. Therefore, tweezers (1)
When the gripping force is small, the tip of the intersection (4)
By locking only the part of the
When it is regulated surely and the force to pinch becomes stronger,
Also locks the part on the rear end side of the intersection (4) and
Damage to the lens is reliably prevented. Therefore, even if the gripping part (5) is further pinched, the gripping part (5) is only bent and the closing force is not transmitted to the tip part (8), so that the sandwiched lens is not damaged.

In addition, the grip portion (5) is thus crossed (4).
Since it is separated by a clear part, the effect of the stopper will not be lost by pinching the vicinity of the tip as in conventional tweezers.

In the tweezers (1) of the present invention, the grip (5)
Since the intersecting portion (4) is formed at a position where the stroke of pinching the stroke is larger than or substantially equal to the closing stroke of the tip portion (8), it is easy to perform fine work for handling the lens.

The arm (3) extends from the intersection (4) to the tip.
Since it is thinned toward (8) (see Fig. 3), it is easy to bend and further prevents excessive force from being transmitted to the lens. The wall thickness (T) of the tip portion (8) is preferably 1/2 or less of the wall thickness (W) of the other part of the arm (3) (see FIG. 3). Further, it is preferable that the tip portion (8) is rounded (having a corner) so that the lens is not damaged even when it comes into contact with the lens. In particular, the disk shape shown in FIG. 1, the ring shape shown in FIG. 5, and the spherical shape shown in FIG. 6 are preferable from the viewpoint of ease of manufacturing.

The size of the tip portion (8) may be any size that does not hinder the narrowing of the lens, and is usually about 2 to 10 mm at the maximum width portion.

As shown in FIGS. 1 to 4, the bending portion (2) is an arm.
(3) Since the width is gradually narrowed from the rear end and the wall thickness is gradually thinned, the elastic force to open the tweezers (1) is small, and when the user handles the tweezers (1). It is easy to control the power of your fingertips.

The material of the tweezers (1) is preferably a non-water-containing soft material that does not easily get dirty, and examples thereof include resins such as polyethylene, polybutadiene, polypropylene, polyester, urethane elastomer and silicone elastomer.

Further, when the tweezers (1) is handled, if the grip portion is provided with a non-slip portion such as a notched shape or a wart-like shape, it becomes easier to handle.

[0024]

The tweezers of the present invention can easily open and close the lens of a container having a small opening because the opening and closing of the tip can be adjusted without being affected by the size of the opening of the container. It is extremely easy to handle because it is easy to control with a fingertip without applying unnecessary force to the barrel lens. Further, since the shape is simple, there is an advantage that the integral molding process is easy.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of tweezers of the present invention.

FIG. 2 is a front view showing a state in which the tip portion of the tweezers in FIG. 1 is closed.

FIG. 3 is a front view of the tweezers of FIG. 1 before assembling.

FIG. 4 is a plan view of the tweezers of FIG. 1 viewed from the arrow (A) direction.

FIG. 5 is a perspective view showing another example of the tip shape of the tweezers of the present invention.

FIG. 6 is a perspective view showing still another example of the shape of the tip of the tweezers of the present invention.

FIG. 7 is a perspective view showing an example of conventional tweezers.

8 is a front view showing a state in which the tip end portion of the tweezers in FIG. 7 is closed.

[Explanation of symbols]

 1 Tweezers 2 Curved part 3 Arm 4 Intersection part 5 Grip part 8 Tip part 9 1st stopper 10 2nd stopper

Claims (4)

[Scope of utility model registration request] 1. A pair of arms, each of which has a rear end continuous through a curved portion having elasticity, intersects each other and is axially supported, and at least at a tip end side of the intersection of the arms. A tweezer for an ophthalmic lens, which is formed with a stopper that abuts each other when they are closed. 2. The forceps according to claim 1, which is made of a non-hydrous soft material. 3. The tip of the arm is thinned.
The described tweezers. 4. The tweezers according to claim 1, wherein the curved portion is thinner than the arm and has a narrow width.