JPH11319086A - Protector for winged needle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protector for 8 winged needle which enables accurately avoiding of needling accidents and infection. SOLUTION: A protector 2 for a winged needle is provided with one slit 9 by cutting a side wall of a roughly cylindrical protector body 8 made of a synthetic resin along the axial direction thereof and a continuous groove 10 for wings following the slit 9 by notching the side wall in the circumferential direction thereof. The slit 9 is made longer than a hollow needle 4 so that the hollow needle 4 is housed into the protector body 8 when both wings 6 and 6 of the winged needle 1 are fitted into the groove 10 for wings. A guide groove 11 adapted to be expanded toward the tip thereof is provided at the tip part of the slit 9. A grip part 12 is provided at a middle part of the protector body 8 by notching an outer circumferential surface of the side wall symmetrically in the diametrical direction thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winged needle used for medical procedures such as blood collection.

[0002]

2. Description of the Related Art Conventionally, a winged needle including a hollow needle, a holding cylinder for holding the rear end of the hollow needle, and a pair of flexible wings formed integrally with the holding cylinder has been used for blood sampling or the like. Used in medical practice. The medical practitioner clamps both wings in a palm-sliding state, penetrates the hollow needle into the blood vessel of the patient, and then expands the wings and affixes the hollow needle to the patient's skin with adhesive tape to fix the hollow needle. Then, blood is collected from the blood vessel of the patient via the hollow needle. The used winged needle is removed from the patient and discarded.If the hollow needle is exposed, the person performing the disposal process may be stabbed or touched by the hollow needle and become infected with pathogenic bacteria. There is.

In order to avoid needle stick accidents and infections, a winged needle protector having a pair of slits provided on the side wall of a substantially cylindrical protector body in a radially substantially symmetrical manner along the axial direction is used. According to such a winged needle protector, the expanded wing is gradually slid and inserted rearward from the tip of the slit, and accordingly, the hollow needle is also gradually moved backward and accommodated in the protector body. You. However, since the wing can slide in the tip direction along the slit with a certain force or more, the hollow needle protrudes from the tip of the protector for a winged needle, and a needle stick accident or infection may occur.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a protector for a winged needle which can solve such a disadvantage and can surely avoid a needle stick accident and infection.

[0005]

According to the present invention, there is provided a protector for a winged needle according to the present invention, which comprises a hollow needle, a holding cylinder for holding a rear end of the hollow needle, and an integral part of the holding cylinder. In a winged needle protector that houses a winged needle having a pair of flexible wings, the side wall of the substantially cylindrical protector body is cut along the axial direction from the tip to be longer than the hollow needle, And a slit in which the wings in the closed state are slidable is provided, and a side wall of the protector body is partially notched in the circumferential direction, and a wing groove for fitting the wings in the expanded wing state is continuous with the slits. It is characterized by being provided.

[0006] When the used winged needle is stored in the winged needle protector having the above-mentioned configuration, first, both wings are put into the palms and inserted into the tip of the slit. And
The two wings in the closed palm state are gradually slid rearward along the slit and fitted into the wing grooves. Since the slit is longer than the hollow needle, the hollow needle is housed in the protector body when both wings are fitted in the wing groove. Since both wings are fitted in the wing groove in the expanded state, it is possible to reliably prevent the wings from sliding forward along the slit and the hollow needle coming out of the protector body. Therefore, a person who disposes of the winged needle can safely work by avoiding a needle stick accident and infection.

It is preferable that a guide groove which expands toward the tip is provided at the tip of the slit. As a result, the two wings in the closed state can be easily inserted into the slit.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a winged needle protector of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a winged needle protector and a winged needle of the present embodiment, and FIG. 2 is an explanatory diagram of a method of using the winged needle protector of the present embodiment.

As shown in FIG. 1, a winged needle 1 has a substantially cylindrical hollow needle 4 having an inclined blade surface 3 at its tip, and a substantially cylindrical holding cylinder for holding the rear end of the hollow needle 4. 5 and the holding cylinder 5
1 made of a soft resin integrally formed symmetrically in the radial direction of
A pair of wings 6 are provided. The hollow needle 4 is connected to a medical device (not shown) via a tube 7.

The winged needle protector 2 has a protector body 8 of a substantially cylindrical synthetic resin. The protector main body 8 is provided with one slit 9 by cutting the side wall along the axial direction, and is provided with a blade groove 10 continuous with the slit 9 by cutting the side wall in the circumferential direction. As will be described later, the slit 9 is longer than the hollow needle 4 so that when the wings 6, 6 of the winged needle 1 are fitted into the wing groove 10, the hollow needle 4 is housed in the protector body 8. . A guide groove 11 that expands toward the tip is provided at the tip of the slit 9. In the middle abdomen of the protector body 8, a grip portion 12 formed of a concave portion obtained by cutting the outer peripheral surface of the side wall symmetrically in the radial direction.
Is provided.

According to the winged needle 1 having the above-described structure, the wings 6, 6 are gripped in a palm joint state, and the hollow needle 4 is penetrated into the blood vessel of the patient with the blade surface 3 facing up, though not shown. Then, both wings 6 and 6 are spread and attached to the patient's skin with an adhesive tape, and winged needle 1 is fixed. After that, hollow needle 4
In addition, medical actions such as blood collection are performed by a medical device (not shown) through the tube 7.

The winged needle 1 after the medical procedure is removed from the patient and discarded, but is stored in the winged needle protector 2 prior to disposal. This will be described with reference to FIG.
First, as shown in FIG. 2 a, when the two wings 6, 6 in the palm-split state are gripped and inserted into the slit 9, the slit 9 opens according to the thickness of the two wings 6, 6. Since the guide groove 11 is provided at the tip of the slit 9, the two wings 6 in a palm joint state,
6 can be smoothly inserted into the slit 9. In addition, since the protector body 8 can be easily gripped by providing the grip portion 12, handling of the winged needle protector 2 becomes easy. When the two wings 6, 6 are slid behind the slit 9 from the state shown in FIG. 2A, the two wings 6, 6 are fitted into the wing groove 10 in the expanded state as shown in FIG. It is housed in the main body 8 and the slit 9 is closed.

As described above, the two wings 6 are fitted in the wing groove 10 in a spread state, and the protector body 8 is provided with the slit 9.
Wings 6 and 6 are slit 9
Is prevented from sliding forward. That is, it is possible to prevent the winged needle 1 once stored with respect to the winged needle protector 2 from moving and the hollow needle 4 from jumping out of the protector body 8. Therefore, the person who performs the disposal process can safely work by avoiding a needle stick accident and infection.

In the present embodiment, the slit 9 is normally closed, and is formed by a cut which is opened only when the two wings 6, 6 in the closed state are inserted. In another embodiment, instead of the cut, a cut groove having a width corresponding to the two wings 6 in the closed state may be used. The two wings 6, 6 in the palm-jointed state can be smoothly slid rearward of the protector body 8 even with respect to the slit formed by such a cut groove.

[Brief description of the drawings]

FIG. 1 is a perspective view of a winged needle protector and a winged needle of the present embodiment.

FIG. 2 is an explanatory diagram of a method of using the winged needle protector of the embodiment.

[Explanation of symbols]

1 ‥ winged needle, 2 ‥ winged needle protector, 4 ‥ hollow needle, 5
{Holding cylinder, 6} blade, 8} protector body, 9} slit, 10} groove for blade, 11} guide groove

Claims (2)

[Claims] A wing for accommodating a winged needle comprising a hollow needle, a holding cylinder for holding a rear end of the hollow needle, and a pair of flexible wings formed integrally with the holding cylinder. In needle protectors,
The side wall of the substantially cylindrical protector body is cut along the axial direction from the tip to provide a single slit that is longer than the hollow needle and slidable by the wings in the closed state, and extends around the side wall of the protector body. A blade protector for a winged needle, wherein a wing groove for partially fitting the wing in a wing-expanded state is provided continuously with the slit. 2. A protector for a winged needle according to claim 1, wherein a guide groove which expands toward a tip is provided at a tip of said slit.