JPH0652806U - Medical tweezers - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide medical tweezers which secures high rigidity in the width direction without affecting operability and further has safety for medical use. In this medical tweezers, first and second guide pieces 8 and 10 projecting from one arm 2 and first and second guide portions 12 projecting from the other arm 4,
14 are engaged with each other from above, below, left and right. Therefore, the holding portions 2a and 4a always come into contact with each other at a predetermined position. Also, by sealing the tweezers with a bag that can be sterilized inside,
The sterilization process becomes easy and it can be handled hygienically.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to tweezers integrally molded with a synthetic resin used for medical treatment.

[0002]

[Prior art]

 Conventionally, tweezers integrally molded of synthetic resin have weak rigidity in the width direction, and thus it has been required to configure the holding portions at the tips of the arms so that they do not shift in a staggered manner. Therefore, conventionally, the rigidity of the arm in the width direction is secured by widening the width of the arm or setting the ratio of the length of the arm to the width to a specific value.

[0003]

[Problems to be solved by the device]

 If the width of the arm is simply widened or the width of the arm is widened along with the extension of the total length of the arm as in the above-mentioned conventional example, it is difficult to adjust the elasticity of the arm, which causes a problem that the operability deteriorates. .

Further, in recent years, medical tweezers not only secure excellent operability and sufficient rigidity as described above, but also secure hygiene and are easy to take measures against infectious diseases, and have high safety. There was also the problem that things were needed.

The present invention has been made in view of the above problems, and an object thereof is to secure a high rigidity in the width direction without affecting operability, and further to provide medical safety tweezers. To provide.

[0006]

[Means for Solving the Problems]

 The medical tweezers of the present invention include a pair of arms having a holding portion at one end and elastically connected at the other end, and a first guide projecting from one of the facing surfaces of the arms toward the other. A piece, a second guide piece projecting in a direction intersecting with the first guide piece, and a second guide piece projecting from the other of the facing surfaces of the arm and engaging with the first and second guide pieces from above, below, left and right respectively. And a first and a second guide portion.

Further, as described above, a pair of arms having a holding portion at one end and elastically connected at the other end, and a guide mechanism provided between the arms for preventing positional displacement of the holding portion are provided. Another feature is that the existing tweezers are sealed with a bag that can be sterilized inside.

[0008]

[Action]

 The medical tweezers of the present invention are configured such that the first and second guide pieces protruding from one arm and the first and second guide portions protruding from the other arm engage with each other in the vertical and horizontal directions. For this reason, both arms relatively move on the same orbit, and the holding portions thereof always come into contact with each other at a predetermined position and are not displaced in a staggered manner.

Further, by sealing the tweezers with a bag that can be sterilized inside, the sterilization process becomes easy and can be handled hygienically.

[0010]

【Example】

 1 is a perspective view showing a medical tweezers according to an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a sectional view taken along the line AA of the medical tweezers shown in FIG. The tweezers in this embodiment shown in the figure are integrally molded of synthetic resin. Reference numerals 2 and 4 denote arms, and at one end thereof, holding portions 2a and 4a having a width narrower than that of the arm body are provided. As shown in FIG. 2, the holding portions 2a and 4a are formed so that the thickness thereof becomes thinner toward the front end direction, and the holding portions 2a and 4a have a shape that makes it easy to scoop thin objects such as paper or pick up fine objects. Has become. Further, the other ends of the arms 2 and 4 are integrally connected through a connecting portion 6 which is curved in a substantially U shape and gives elasticity to the arms 2 and 4. In addition, in order to obtain sufficient strength, the arms 2 and 4 in this embodiment are formed to have a convex sectional shape.

Reference numeral 8 denotes a plate-shaped first guide piece that projects from the inner surface of the arm 2 that faces the arm 4. The first guide piece 8 is erected along the longitudinal direction of the arm 2 and is formed so that its tip is located substantially in the middle of the arms 2 and 4.

Reference numeral 10 denotes a plate-shaped second guide piece that projects from the side surface of the first guide piece 8 so as to intersect the first guide piece 8. The first and second guide pieces 8 and 10 in this embodiment are formed so as to be substantially orthogonal to each other to form a cross shape. Further, the protruding length of the first and second guide pieces 8 and 10 is set to such a length that the tips are brought into contact with the inner surface of the arm 4 in a state where the holding portions 2a and 4a are properly brought into contact with each other. .

Reference numerals 12 and 14 denote first and second guide portions projecting from the inner surface of the arm 4 facing the arm 2. In this embodiment, the first and second guide portions are also formed in a plate shape. Further, the first and second guide portions 12 and 14 are formed so as to be vertically and horizontally displaced so that there is a predetermined interval in the longitudinal direction and the width direction of the arm. That is, the first and second guide portions 12 and 14 are spaced by at least the thickness of the first guide piece 8 in the width direction of the arm and at least the thickness of the second guide piece 10 in the longitudinal direction of the arm. Are arranged so that there is a space between them. The upper and lower surfaces of the second guide piece 10, the lower surface of the first guide portion 12, and the upper surface of the second guide portion 14 may be linear so as to match the movement of the arms 2 and 4, but are arcuate curved surfaces. I hope there is.

In this embodiment, the arm guide mechanism is formed by the first and second guide pieces 8 and 10 and the first and second guide portions 12 and 14.

Reference numeral 15 denotes a non-slip portion formed of a plurality of grooves, irregularities, etc. provided on the outer side surfaces of the arms 2 and 4. The anti-slip portions 15 are provided at positions corresponding to the first and second guide pieces 8 and 10 and the first and second guide portions 12 and 14, respectively.

In the tweezers having the above-mentioned structure, usually, as shown in FIG. 1 or 2, the holding portions 2a and 4a are held in a state where the holding portions 2a and 4a are spread at a predetermined interval, and the anti-slip portion 15 of the arms 2 and 4 is retained. When pressed from the left and right in the figure, the arms 2 and 4 move in an arc around the continuous portion 6. At this time, one side surface 8a of the first guide piece 8 and the side surface 12a of the first guide portion 12, the upper surface 10a of the second guide piece 10 and the lower surface 12b of the first guide portion 12 are engaged with each other. Further, the other side surface 8b of the first guide piece 8 and the side surface 14a of the second guide portion 14, the lower surface 10b of the second guide piece 10 and the upper surface 14b of the second guide portion 14 engage with each other. As described above, the first guide piece 8 and the first and second guide portions 12, 14 are engaged with each other, so that the arms 2, 4 are prevented from shifting to the left and right, and the second guide piece 10 and the first guide piece 10, 14 are prevented from being displaced from each other. By engaging the first and second guide portions 12 and 14, the vertical displacement of the arms 2 and 4 is suppressed. As a result, as shown in FIG. 4, the gripping portions 2a and 4a always come into contact with each other in an appropriate state.

Further, as shown in FIG. 6, when the holding portions 2a, 4a are in contact with each other in an appropriate state, the tips 8c, 10c of the first and second guide pieces 8, 10 make the inner surface of the arm 4 face. When the arms 2 and 4 are further pressed when the arms 2 and 4 are set so as not to come into contact with 4b and to form a gap therebetween, as shown in FIG. 7, the substantially central portions of the arms 2 and 4 are further moved. It transforms so that it approaches. Due to such movements and deformations of the arms 2 and 4, the tips 2c and 4c of the holding portions 2a and 4a move and open with their rear ends 2d and 4d as fulcrums, as shown in FIG. In the present embodiment, as shown in FIG. 5, when the gripping portions 2a and 4a are brought into proper contact with each other, the tips 8c and 10c of the first and second guide pieces 8 and 10 are brought into contact with the inner surface 4b of the arm 4. Abut. Therefore, even if the arms 2 and 4 are further pressed, the arms 2 and 4 do not move or deform. Therefore, the holding parts 2a, 4a can keep the proper contact state even if the arms 2, 4 are further pressed. In the present embodiment, the tip ends of the first and second guide pieces 8 and 10 are in contact with the inner surface of the arm 4 when the holding portions 2a and 4a are in proper contact with each other. The tips of the first and second guide portions 12 and 14 may be in contact with the inner surface of the arm 2, or both may be in contact with the arm.

Further, when the arms 2 and 4 are pressed, the middle part thereof, that is, the part where the first and second guide pieces 8 and 10 and the first and second guide portions 12 and 14 are provided is pressed. It is desirable to do. In this embodiment, the anti-slip portion 15 is provided on the outer surface of the portion of the arms 2 and 4 where the first and second guide pieces 8 and 10 and the first and second guide portions 12 and 14 are provided. Therefore, it is possible to operate the optimum position only by putting a finger on the anti-slip portion 15 and pressing it.

When the force pressing the arms 2 and 4 is weakened, the elasticity of the connecting portion 6 restores the arms 2 and 4, and returns to the original state as shown in FIG.

FIG. 8 is a front view showing a state in which the tweezers are enclosed in a bag. In this bag 16, most of the portion except the center on the back side in the figure is made of a plastic film 16a, and the center portion on the back side is made of a sterilization sheet 16b made of gas permeable sterilization paper or the like. The opening of the bag 16 at the top and bottom of the bag for inserting the tweezers is sealed by heat sealing. The tweezers are gas-sterilized together with the bag 16, and the sterilizing gas permeates into the bag from the sterilization sheet 16b to sterilize the internal tweezers.

Although the sterilization sheet 16b is provided on a part of the bag 16 in this embodiment, the entire bag can be formed of a sterilization sheet, or the entire bag can be formed of the plastic film 16a. Further, if the plastic film 16a is transparent or translucent, the internal tweezers can be confirmed. Here, the plastic film 16a may be an ultraviolet ray transmission prevention film to prevent discoloration or deterioration of the pincette. As shown in FIG. 9, the entire bag is formed of a plastic film 16d having a hole 16c in a part thereof, and one or both of the inner and outer surfaces of the plastic film 16d is covered with sterilized paper so as to close the hole 16c. The sterilization sheet piece 16e including a label or the like can be changed to be attached. In this case, the number and size of the holes 16c provided in the plastic film 16d can be set arbitrarily.

[0022]

[Effect of device]

 According to the present invention, by providing the guide mechanism between the arms, it is possible to prevent the holding portion from being displaced without making a change such as increasing the width of the arm to affect the operability. The rigidity of can be increased.

Further, by enclosing the tweezers in a bag in which the contents can be sterilized, it is possible to perform sterilization and sanitary storage to make it usable for medical treatment, which results in high safety. Can be secured.

In particular, by sealing the tweezers with a bag, it is possible to determine at a glance whether or not it is a used one, and it is possible to prevent the reuse of a used one and to easily prevent infections. You can

[Brief description of drawings]

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

FIG. 2 is a front view of the medical tweezers shown in FIG.

3 is a cross-sectional view taken along the line AA of the medical tweezers shown in FIG.

FIG. 4 is a front view showing a state where the arm of the tweezers shown in FIG. 2 is pressed from the left and right.

5 is an enlarged partial view of the tweezers shown in FIG.

FIG. 6 is an enlarged partial view of tweezers configured such that the first and second guide pieces do not come into contact with the inner surface of the arm when the holding portion comes into proper contact.

FIG. 7 is an enlarged partial view showing a state where the arm of the tweezers shown in FIG. 6 is further pressed.

FIG. 8 is a front view showing a state in which tweezers are enclosed in a bag.

9 is a front view showing a modified example of the bag shown in FIG.

[Explanation of symbols]

 2, 4 Arms 2a, 4a Holding part 6 Continuously provided part 8 First guide piece 10 Second guide piece 12 First guide part 14 Second guide part 16 Bag 16a Plastic film 16b Sterilization sheet

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masayoshi Mutani 1785 Zenmonbashi, Nomachi, Miwa-cho, Asakura-gun, Fukuoka Prefecture Nichiban Plast Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A pair of arms having a holding portion at one end and elastically connected at the other end, a first guide piece projecting from one of facing surfaces of the arm toward the other, First
A second guide piece protruding in a direction intersecting with the guide piece, and a first guide piece protruding from the other of the facing surfaces of the arm and engaging with the first and second guide pieces from above, below, left and right, respectively.
And a second guide part, which is a medical tweezers. 2. A tweezers having a pair of arms having a holding portion at one end and elastically connected at the other end, and a guide mechanism provided between the arms for preventing positional displacement of the holding portion. Medical tweezers characterized by being sealed in a sterilizable bag.