JP4250699B2 - A lancet device that can safely remove the lancet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lancet device for launching a lancet, and more particularly to a lancet device that can safely remove a used lancet.
[0002]
[Prior art]
Diabetics may themselves measure blood sugar levels several times a day. At the time of this test measurement, it is necessary to obtain a small amount of blood from the fingertip. For this purpose, a disposable puncture needle called a lancet is used. A needle is installed at the tip of the lancet, and the needle punctures the skin, and bleeding from the punctured wound is used for the inspection.
[0003]
The lancet is launched with a dedicated lancet device. A typical lancet device is composed of a cylindrical main body part and a cap part as described in JP-A-59-160441, and has a spring part and a trigger part for driving the lancet. When in use, the lancet is launched by removing the cap, setting the lancet, fitting the cap, compressing the spring, and releasing the trigger. By placing a finger on the tip of the device, the punched lancet punctures the finger, and the lancet instantaneously retracts into the device.
[0004]
Because of the risk that bacteria and viruses that cause infections are transmitted via blood, the lancet is usually disposable, and the used lancet is discarded. At the time of disposal, the act of removing the cap part and removing the used lancet occurs.
[0005]
However, if the lancet is removed at the time of disposal, there is a risk that the fingertip may be stuck with the used lancet. Many users of lancet devices are blind because of diabetic complications, and the frequency of this accident is high. There are few problems for the same person to use one lancet device continuously, but there are cases where a plurality of people use one lancet device, which increases the risk of infection via blood.
[0006]
Conventionally, when removing a used lancet, the cap portion is removed, the tip of the exposed needle is covered with some disposable cover, and the lancet is extracted. The “cover” is a tissue paper or a resin protecting the needle portion of an unused lancet. However, when the user tries to cover the tip of the needle with the cover, the user may end up with a fingertip.
[0007]
Thus, several techniques have been devised for removing a used lancet from a lancet device after use without touching it. For example, U.S. Pat. No. 4,658,821 is not a cylindrical lancet device, but the used lancet is pushed out and removed by pushing the plunger behind the cylindrical lancet attachment. In Japanese Patent Laid-Open No. 56-161038, when a switch at the rear of the lancet device is pressed, the stopper at the lancet mounting portion is loosened, and the lancet is removed when it is dropped.
[0008]
[Problems to be solved by the present invention]
The aim of the present invention is to provide a safe lancet device that can be used to remove a used lancet without touching it directly by means that have never been seen before.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention is a lancet device having a main body portion and a cap portion that is used while being attached to the main body portion at the time of puncturing, and a used lancet by pressing a part of the cap portion. Is fixed, and the used lancet is removed from the main body portion by removing the cap portion from the main body portion.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 7 shows a state in which the lancet device according to the present invention is used. After injecting the lancet, as shown in FIG. 4, the user takes the used lancet sandwiched between the caps to the top of the trash box together with the cap, and releases the pressure there. The cap that has been held down with your finger is simply removed from the fingertips while keeping the cap from falling, making it easy to aim on the trash can.
[0011]
The pressing means in the lancet device of the present invention may be a button penetrating the outer shell of the cap portion. That is, the user can remove the used lancet fixed via the button only by pulling the cap from the main body while pressing the button.
[0012]
It is more convenient to have an elastic member for returning the button to its original position after the disposal operation is completed by releasing the button. Of course, there is no problem even if the user pulls back the button head with his finger to return to the initial position.
[0013]
As another form, the cap part may be partially or entirely made of an elastic material (plastic resin, rubber member, etc.), and the used lancet may be fixed by pressing the cap part. In other words, it can be considered that this form is formed by integrating the button-shaped button portion and the elastic member.
[0014]
However, considering the strength at the time of connection between the cap portion and the main body portion, it is preferable that the main body connection portion of the cap portion has an appropriate rigidity.
[0015]
【Example】
Hereinafter, the lancet device of the present invention will be described with reference to the drawings. Note that the finger of the user who should hold each component of the lancet device is omitted and not shown.
[0016]
FIG. 1 is a side sectional view of a lancet device A according to an embodiment of the present invention. The lancet device A includes a cap part 1 and a main body part 2, and the main body part 2 includes a part 3 for attaching a lancet, a spring part 4, a trigger part 5, and a trigger part 6. As shown in FIG. 1, the cap portion 1 is removed, and a new lancet 7 is set on the lancet mounting portion 3 in the direction of the arrow. The lancet 7 in figure, for convenience, although the needle portion 70 bare, usually attached while wearing a cover resin covering the needle portion 70, to eliminate completely twisting the resin after mounting.
[0017]
As shown in FIG. 1, the cap portion 1 has a button 8 which extends through the cap portion 1, the leaf spring 9 for returning the button 8 to the original position while holding the button 8 to the cap portion 1. It will be apparent that the leaf spring 9 does not have to have a leaf spring shape, and a coil spring or a rubber member has a similar function.
[0018]
FIG. 2 is a side sectional view showing a state immediately before the lancet device A is used after the lancet 7 is attached and the cap 1 is returned to the main body portion 2 (that is, just before the trigger 6 is released). It can be seen that the trigger 5 at the rear of the body portion 2 of the lancet device A is pulled and the spring portion 4 for driving the lancet 7 is compressed.
[0019]
Thereafter, when the trigger 6 is released, the spring 4 is released, and the lancet 7 advances together with the lancet attachment portion 3. The needle part 70 at the distal end of the lancet 7 that has advanced protrudes from the hole 10 at the distal end of the cap portion 1 for a moment, punctures the user's fingertip, and immediately retracts (not shown).
[0020]
FIG. 3 shows that the button 8 pressed by the user's finger fixes the used lancet 7, and in this state, the cap portion 1 is separated from the main body portion 2 in the direction of the arrow, so that the used lancet 7 becomes the lancet mounting portion 3. It is the sectional side view which showed a mode that it pulled out from.
[0021]
FIG. 4 is a diagram in which the user takes the used lancet 7 sandwiched between the cap portions 1 to the top of the trash box together with the cap 1 and releases the pressure there. The user turns down the opening 11 of the cap 1 that has been pressed with the finger together with the button 8, and removes the force of the fingertip while preventing the cap 1 from dropping. Then, the used lancet 7 falls in the direction of the arrow and is stored inside the trash can.
[0022]
FIG. 5 is a side sectional view of the vicinity of the cap portion 1 ′ in the lancet device A according to another aspect of the present invention. The main body part 2 other than the cap 1 ′ , the part 3 for attaching the lancet 7 , the spring part 4 , the trigger part 5 , the trigger part 6 and the lancet 7 are all the same parts as the lancet device A ( see FIGS . 1 to 3 ). Since the portion (pressing portion) 12 to be picked by the finger in the cap portion 1 ′ is made of a material having elasticity, the used lancet 7 can be fixed as it is by pressing the cap 1 ′ with the finger. A dotted line indicates an outline in a state where the cap 1 'is not pressed with a finger, and a solid line indicates an outline in a state where the cap 1' is pressed with a finger. Of course, only the portion (pressing portion) 12 that can be pressed by the finger of the cap 1 ′ may be made of an elastic material, or the cap 1 ′ may be made entirely of an elastic material with a space. Good.
[0023]
When the entire cap portion 1 'is formed of an elastic material, there is a possibility that the coupling with the main body portion 2 may be loosened, so that only the coupling portion with the main body portion 2 in the cap portion 1' is made of a hard material. It can also be applied.
[0024]
FIG. 6 is a side sectional view of the vicinity of the cap portion 1 ′ in the lancet device A according to still another aspect of the present invention. The main body part 2 other than the cap 1 ′ , the part 3 for attaching the lancet 7 , the spring part 4 , the trigger part 5 , the trigger part 6 and the lancet 7 are all the same parts as the lancet device A ( see FIGS . 1 to 3 ). A portion (pressing portion) 13 to be picked by a finger in the cap portion 1 ′ is retracted into the cap 1 ′ when pressed by the finger, and a key-shaped end portion 14 provided on the inside fixes the lancet 7 . The pressing portion 13 may utilize its elasticity because the cap 1 'is mostly molded from resin, or may be through an independent hinge part. After the fingertip force is removed and the lancet 7 is discarded, the pressing portion 13 may be returned to the original position.
[0025]
【The invention's effect】
As described in detail above, the lancet device of the present invention can be removed without touching the used lancet by a hand that has never been used.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a lancet device according to an embodiment of the present invention.
FIG. 2 is a side sectional view showing a state immediately before the lancet device according to the present invention is used.
FIG. 3 is a side sectional view showing a state in which a used lancet is pulled out.
FIG. 4 is a diagram showing how a lancet sandwiched between caps is discarded.
FIG. 5 is a side sectional view of the vicinity of a cap portion in a lancet device according to another aspect of the present invention.
FIG. 6 is a side sectional view of the vicinity of a cap portion in a lancet device according to another aspect of the present invention.
FIG. 7 is a perspective view showing a state in which a lancet device according to the present invention is used.
[Explanation of symbols]
A lancet device 1, 1 'cap part
10 Hole (on the cap)
11 Opening (in the cap)
12, 13 Pressing part 2 (of the cap part) Body part 3 Part for attaching the lancet 4 Spring part 5 Trigger part 6 Trigger part 7 Lancet
70 (lancet) needle 8 button 9 leaf spring

Claims (4)

In a lancet device having a main body part and a cap part used in a state of being attached to the main body part at the time of puncturing ,
A used lancet is fixed by pressing a part of a cap portion, and the used lancet is removed from a main body portion by removing the cap portion from the main body portion.   The lancet device according to claim 1, wherein the pressing means is a button penetrating the outer shell of the cap portion.   The lancet device according to claim 2, further comprising an elastic member for returning the button to the original position when the pressure is released to discard the fixed lancet.   The lancet device according to claim 1, wherein a part of or the whole of the cap part is made of a material having elasticity, and the used lancet is fixed by pressing the cap part.

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