JPH01209070A - Method for protecting medical needle and protector thereof - Google Patents

Abstract

PURPOSE:To easily protect a needle by filling the hollow part of a pouch body with a liquid, expanding the pouch body, and covering the needle. CONSTITUTION:To an injector 6 main body, a gas feeder 11 and a pouch body housing device 14 are attached. A stopper 16 of a storage cylinder 15 is removed, the valve 17 of the storage cylinder 15 is moved, a pressurized gas is exhausted, and the gas is supplied through a check valve 18 of the pouch body housing device 14 into a pouch body 12. Thus, the internal pressure of the pouch body 12 in the pouch body housing device 14 is raised, the pouch body 12 intends to be made linear, it jumps out from the pouch body housing device 14, the head is stretched beyond a needle point, and the needle point is covered with a needle point covering part 13.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention covers the tips of used medical needles such as injection needles and infusion needles, so that the needles that have been used on the human body can be discarded, or the needles that have been used for blood collection can be disposed of. A method of protecting medical needles such as hypodermic needles so that when removing the needle from the syringe body, such as when transferring the syringe to another container, hands etc. do not touch the needle tip and infect the patient with the disease. and related to protective equipment.

[Conventional technology]

Conventionally, as shown in FIG. 9, the tip of a hypodermic needle or the like is inserted into a protector 44, the inner circumferential surface 45 of the base of the protector 44 is fitted onto the outer circumferential surface 43 of the needle base 42, and the needle tip is inserted into the protector 44. Covered and protected.

However, in this case, the injection needle or the like must be inserted into the protector 44 from its tip, but the needle tip may slip out of the opening of the protector 44 and hit the hand. A protector with a funnel-shaped opening that widens at the tip has also been proposed so that the tip of the needle can be reliably inserted into the protector. However, even in this case, the needle must be inserted into the protector using both hands, which is a problem in emergencies where both hands cannot be used to protect the needle tip.

[Problem to be solved by the invention]

With such conventional protectors, the needle must be inserted into the protector from the tip, holding the protector with one hand and inserting the needle tip into the protector with the other hand.
It was necessary to aim firmly with the hand, and the tip of the needle could not be protected with one-handed operation. Therefore, it was difficult to put on the protector in a hurry, and there was a high risk of getting your hands stabbed if you tried to put it away in a hurry.

[Means to solve the problem]

As illustrated in FIGS. 1 to 8 as means for solving the above problems, the first invention is to fill the hollow part of the bag with fluid, thereby increasing the internal pressure and inflating it to cover the needle. The second invention, which is a protection method, is a medical needle protector that includes means for supplying a fluid that exerts pressure, and a bag body that expands when the fluid is introduced into a hollow part and the internal pressure increases.

[Effect]

The needle base 2 of the medical needle 1 is fitted into the connecting protrusion 7 of the main body 6 to perform operations such as injection and blood sampling. Then, when the medical needle 1 is pulled out from the human body and gas is supplied from the gas supply device 11 to the bag body 12 as a means for supplying fluid that exerts pressure, the bag body 1
2 expands due to increased internal pressure. At this time, the bag body 12 is inflated beyond the tip of the needle to cover the needle tip, and then the bag body 12 is slightly pulled or the gas is removed a little, and the needle tip is stuck into the bag body 12. or cover the split with a part of the bag body I2. Thereby, the needle is surrounded and protected by the bag 12.

〔Example〕

The present invention will be described in detail below based on embodiments shown in the drawings.

FIG. 1 shows a syringe equipped with a needle protector showing one embodiment of the present invention. In this figure, the gas supply device 11 and the bag storage container 14 are attached to the syringe body, gas is supplied, the bag 12 extends to the needle tip, and the needle tip cover part 13 is in a state where the injection needle 1 is wrapped. There is. The air supply device 11 is attached with a gas storage bottle 15, and a gas storage bottle 15 is attached to the air supply bottle 11.
When supplying gas into the bag body 12 from the storage bottle 15
The stopper 16 is removed and the valve 17 to the storage bong is moved to discharge the pressurized gas, and the gas is supplied into the bag 12 through the check valve 18 of the bag storage device 14. Then, the bag storage container 14
The internal pressure of the inner bag becomes 1", and the bag tries to straighten out and pops out of the bag storage container 14, and its tip extends beyond the tip i1, making it possible for the needle tip covering part 13 to cover the needle tip. become able to do. Then, the pressure inside the bag is reduced or the bag is pulled back so that the needle sticks into the needle tip cover 13 or is enveloped. Then, the needle with its tip protected and the bag body are separated from the syringe body 6.

FIG. 2 is a diagram showing another embodiment of the present invention.

In order to simplify the explanation, parts having the same functions as those in FIG. 1 will be described using the same reference numerals. In this embodiment, the gas supply device 11
A pump 19 is provided in the bag body 12, and the pump 19 is operated to supply air to the bag body 12. In other words, loosen the spring 20 and open the valve 2.
1, air is sucked in, and the spring 20 is pressed to supply air to the bag body 12 through the valve 22. Then, as in the previous embodiment, the bag body 12 extends and its tip reaches the needle tip and covers the needle tip.

3 and 4 are diagrams showing still another embodiment of the present invention, and the bag body 12 of this embodiment has a divided shape as shown in FIG. By making the bag 12 into such a shape, it is possible to reduce the volume of the gas in the bag, thereby reducing the amount of working gas and making it easier to enclose the needle.

After covering the needle with the needle tip covering part 13, as shown in FIG. Separate the bag body 12 from the syringe body 6. To perform this cutting and separation with one touch, press the lever 24, and the front receiver of the bag storage device 14 provided on the syringe body will hold the bag 12 at the corner of the blade 25 and the movable blade 26 provided on the lever 24. At the same time as the needle base 2 is cut, the stopper 27 that locks the needle base 2 also descends to release the claw on the collar of the needle base 2, and then the lever 24
An inclined protrusion provided at the syringe body 6 slides between the syringe body 6 and the needle base 2 to separate the needle from the syringe body.

In this case as well, the gas supply device 11 may be of a storage cylinder type, a pump type, or some other type, and the structure of the gas supply device 11 is not limited to this embodiment.

FIG. 5 is a diagram showing still another embodiment of the present invention, 28
has multiple cylinders and each cylinder can be extended by sliding forward, and shortened by sliding backward as shown. In this figure, a truncated conical tube is shown, but a cylindrical tube may also be provided with a stopper to prevent it from coming off.

The multiple cylinder 28 is contracted and placed in the bag storage container 14, and the bag 12 is stored in the inner cylinder 28C and connected to the tip of the bag 12 with a locking member 29.

Then, when gas is supplied to the bag body 12 through the check valve 18,
The bag body 12 extends forward. Then, the inner cylinder 28C connected to the lock tjA' 29 also extends forward as the bag body 12 extends. The inner cylinder 28C is hollow and the outer intermediate cylinder 28B
When the inner diameter of the intermediate cylinder 28B becomes the same as that of the inner diameter of the intermediate cylinder 28B, the intermediate cylinder 28B extends forward. Similarly, the cylinders extend forward one after another, and the tip of the bag 12 covers the needle tip, so that according to the example above, the bag 12
Cut the needle and remove the needle.

FIGS. 6 to 8 are diagrams showing still other embodiments,
An example of application to an infusion needle is shown.

In the figure, 30 is a gas supply pipe that sends gas supplied from the gas supply device 11 to the bag body 12. Reference numeral 31 denotes a terminal provided at the tip of the infusion tube. This terminal 31 has a liquid passageway, has a hollow spherical air reservoir 32 in communication with the passageway above, and further has an indwelling terminal 32 below for indwelling in a human arm or the like. Wing 33
It is equipped with

When the infusion is finished, the needle 1 is pulled out, the bag storage container 14 is moved from the position 14A to the front needle base 2, the gas supply device 11 is activated, and the gas is passed through the gas supply pipe 30 to the bag 1.
The bag body 12 is inflated beyond the needle tip to cover the needle 1 and protect the needle tip.

In the above embodiment, only the gas supply device 11 was described as a means for supplying fluid that exerts pressure on the bag body 12. However, the bag body 12 may be inflated using liquid, and the gas supply device 11 may be used to supply fluid to a bong. Although the explanation has been made using a pump, the present invention is not limited to this, and fluid may be compressed and stored in a part of the bag body. Furthermore, each of the above embodiments explained using a syringe or an infusion needle can be applied to other medical needles, and -7 = Similarly, the bag body is not limited to the needles shown in the embodiments, but can be applied to other medical needles. Applicable. Further, a protective layer for the needle tip may be attached to the tip of the bag 12.

〔Effect of the invention〕

As explained above, the needle protection method and its protector according to the present invention stretch the bag body by supplying fluid to cover the needle.
Made to protect the needle. Therefore, the needle can be protected with only one hand, and the needle can be removed from the syringe body after use without fear of hitting the hand or the like with the needle. In addition, by attaching a cutting/separating device to the syringe body, it is possible to protect the needle tip and dispose of the needle with one hand.

[Brief explanation of the drawing]

Figures 1 to 8 show an example of the present invention.
Figures 2 and 4 are partially cutaway side views showing the state in which the protector is activated and can protect the needle; Figure 3 is a plan view with the protector activated and extended; Figure 5 is a partially cutaway side view showing the state in which the protective equipment is stored, Figure 6 is a side view with the protective equipment activated and extended, Figures 7 and 8 are cross-sectional views, FIG. 9 is a sectional view showing a conventional example.

Claims (1)

[Scope of Claims] 1) A method for protecting a medical needle, which comprises filling a hollow part of a bag with fluid to increase internal pressure and inflate the bag to cover the needle. 2) A medical needle protector characterized by comprising means for supplying a fluid that exerts pressure, and a bag body that expands when the fluid is introduced into the hollow part and the internal pressure increases.