JPH0663137A - Protector for detention needle with blade - Google Patents

Abstract

PURPOSE:To provide a protector which can store a cannula in the protector easily and surely even if a tape or absorbent cotton adheres to a blade piece. CONSTITUTION:A protector is adapted to store a used cannula of a detention needle with a blade comprising a cannula, a hub with a blade and a flexible tube. The protector includes a pair of opposed hinge pieces 2, 3 and a hinge base part 4 for connection the same in such a manner as to be opened and closed. A through hole 5 for passing the flexible tube is formed on the hinge base part 4, and the protector further includes a hinge part 1 where a groove 6 for loosely fitting a blade piece of a hub between the hinge pieces 2, 3, an opening and closing operation part 9 formed by a projection piece projected from the hinge base part 4 in the opposite direction to the hinge piece, an upper cover 12 connected to the piece 2 and a lower cover 13 connected to the hinge piece 3, wherein an upper click 14 is formed on the inner surface of the tip of the upper cover, a lower click 15 is formed on the inner surface of the tip of the lower cover, and when both clicks are engaged with each other, the upper cover 12 and the lower cover 13 are bound not to be opened.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a winged indwelling needle protector. More specifically, it is used for a winged indwelling needle that is left in the blood vessel of a patient for a long time during hemodialysis or continuous infusion, and safely stores the used canula to prevent infections such as AIDS and hepatitis B. About protector to keep.

[0002]

2. Description of the Related Art A conventional protector for a winged indwelling needle is disclosed in Japanese Utility Model Publication No. 4-25139. This conventional example will be described with reference to FIG. The indwelling needle consists of a canula 53 having a wing piece 52 and a flexible tube 55 connected to the tip of the liquid guiding tube of the drip set, and the flexible tube 55 is provided with a tip of the canula 53 as a protector. A tubular member 56 capable of covering 53 'is loosely fitted. The tubular member 56 as a protector has a cutout portion 57 'at the tip end thereof into which the blade piece 52 can be engaged, and a fitting groove for the blade piece 52 near the rear end.
58, and a cut line 57 that connects the cutout portion 57 ′ and the fitting groove 58 is provided.

As shown in FIG. 6, a method of using the tubular member 56 loosely fitted in a flexible tube 55 is shown in FIG. 6 (a).
After moving to the 53 side and turning the tubular member 56 so that the blade 52 and the notch line 57 are aligned, as shown in the figure (b), the blade 52 is caught in the wedge-shaped notch 57 '. , When pushing it with a strong force to enter the notch line 57 which is normally closed, the figure (c)
As described above, the tubular member 56 covers the tip end 53 ′ of the canula 53, and the wing piece 52 is fitted and fixed in the fitting groove 58. As described above, the fixed blade 52 does not come out of the fitting groove 58 unless a strong force is applied, and the canula 53 is housed in the tubular member 56.

[0004]

However, in the above-mentioned conventional example, the wing piece 52 of the indwelling needle is inserted into the notch line 57 of the tubular member 56 to cover the tip 53 'of the canula. After the indwelling needle has been used, a tape for fixing is attached to the upper surface of the wing piece 52, and a small absorbent cotton etc. for attaching the needle puncture angle is attached to the lower surface of the wing piece 52. In many cases, it is impossible to enter the cut line 57 of the tubular protector as it is. However, even if this is the case, when the work of removing those tapes or absorbent cotton is performed, there is a possibility that the needle may be accidentally stabbed in the finger at that time. In this case, if the patient is a carrier of AIDS, hepatitis B, etc., there is a risk of infection from the wound.

In view of such circumstances, the present invention provides a protector which can easily and surely store a canula in a protector even if a wing piece is provided with a tape or absorbent cotton and prevent infection due to a puncture accident. The purpose is to

[0006]

A protector for a winged indwelling needle of the present invention is a protector for accommodating a used canula of a winged indwelling needle consisting of a canula, a winged hub, and a flexible tube. Consisting of a pair of hinge pieces and a hinge base portion that connects the hinge pieces so that the hinge pieces can be opened and closed, and a through hole for passing the flexible tube is formed in the hinge base portion,
A hinge part in which a groove for loosely fitting the wing piece of the hub is formed between the pair of hinge pieces, an opening / closing operation part including a projecting piece protruding from the hinge base portion in a direction opposite to the hinge piece, and the hinge piece And an upper cover connected to one side of the hinge piece and a lower cover connected to the other side of the hinge piece.

The present invention comprises an upper pawl formed on the inner surface of the tip portion of the upper cover and a lower pawl formed on the inner surface of the tip portion of the lower cover. It is preferable to provide a lock claw that restricts the opening.

[0008]

According to the present invention, when the opening / closing operation portion is pinched with the fingers, the hinge portion is opened and the space between the upper and lower covers is widened. It can be slid to the desired position and can easily accommodate the canula. Further, when the lock claw is formed, it is safe because the upper and lower covers are closed after the canula is housed and the lock claw cannot be opened again.

[0009]

EXAMPLES Examples of the present invention will be described below. 1 is a perspective view of a protector P according to an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a side view thereof, and FIG. 4 is a front view (A) and a rear view (B) thereof.

1 to 4, 1 is a hinge portion,
It is composed of a pair of hinge pieces 2 and 3 and a hinge base portion 4 that connects them in a freely openable and closable manner. The hinge base 4 is formed with a through hole 5 (see FIG. 4 (B)) through which a flexible tube described later is inserted, and a groove for loosely fitting a wing piece 22 described later between the hinge pieces 2 and 3. (Or a space) 6 is formed. Further, the hinge base 4 is provided with an opening / closing operation portion 9 composed of projecting pieces 7 and 8 projecting in a direction opposite to the hinge pieces 2 and 3.

An upper cover 12 is connected to the hinge piece 2 and a lower cover 13 is connected to the hinge piece 3. Each of the upper and lower covers 12 and 13 has a wide triangular shape on the tip side in a plan view, and its cross-sectional shape is a mountain shape. An upper claw 14 is formed on the inner surface of the tip portion of the upper cover 12, and two lower claws 15a and 15b are formed on the inner surface of the tip portion of the lower cover 13, thereby forming a lock claw 16. This lock claw 16 has two upper claws 14 and two lower claws 15.
When it enters between a and 15b, the claw piece is caught and cannot be opened again. If no external force is applied to the upper cover 12 and the lower cover 13 to compress them vertically, the upper claw 14 and the lower claws 15a, 15
Although b is separated from each other and does not engage, it is designed to be caught when pressed by fingers.

The hinge portion 1 has elasticity. When the opening / closing operation portion 9 is pressed with fingers, the upper and lower covers 12 and 13 are opened, and when the external force is removed, the upper and lower covers 12 and 13 are closed as shown in FIG. . As described above, it is preferable that the protector P according to the present embodiment is formed of a synthetic resin having elasticity to some extent, for the reason that the hinge portion 1 has elasticity. However, it may be made of metal as long as it has a hinge function.

Next, based on FIG. 5, the protector P will be described.
How to use is explained. In FIG. 5 (A), 20 is a known indwelling needle consisting of a canula 21, a hub 23 with a wing piece 22 and a flexible tube 24. While the canula 21 is being used by puncturing the human body, the protector P is inserted into the flexible tube 24 behind the canula 21 and left out of the way. At this time, the flexible tube 24 is passed through the through hole 5 of the protector P.

When the canula 21 is stored in the protector P after the injection is completed, as shown in FIG. 2B, the projecting pieces 7 and 8 of the opening / closing operation portion 9 are pushed to bend the hinge portion 1 and the upper and lower covers. Open 12,13 and push forward (in the direction of arrow f). At this time, since the upper and lower covers 12 and 13 are wide open, even if a fixing tape, absorbent cotton or the like is attached to the wing piece 22, the wing piece 22 can be passed through without any problem. In this way, when the protector P is moved, the inner peripheral surfaces of the mountain-shaped upper and lower covers 12 and 13 come into contact with the flexible tube 24, so that it exerts a guiding action and the upper and lower covers 12 and 13 are moved sideways. Since there is no large deviation, there is an advantage that the forward operation is easy.

In this way, when the upper and lower covers 12 and 13 come to the tip of the canula 21, as shown in FIG.
22 to the position where it fits into the groove 6 of the hinge part 1, lift the upper and lower covers 12 and 13 between the opening and closing operation part 9 by firmly grasping the upper and lower covers 12 and 13, and bend the upper claw 14 between the lower claws 15a and 15b. To engage the lock claw 16. As a result, the upper and lower covers 12 and 13 cannot be opened, and there is no danger of human hands touching the canula 21.

[0016]

According to the present invention, the canula can be easily and surely stored in the protector even if the winglet is provided with tape or absorbent cotton, and infection due to a puncture accident can be prevented in advance.

[Brief description of drawings]

FIG. 1 is a perspective view of a protector P according to an embodiment of the present invention.

FIG. 2 is a plan view of the protector P shown in FIG.

FIG. 3 is a side view of the protector P shown in FIG.

FIG. 4 is a front view of the protector P shown in FIG. 1 (A).
It is a rear view (B).

FIG. 5 is an explanatory diagram showing a method of using the protector P.

FIG. 6 is an explanatory diagram of a conventional protector.

[Explanation of symbols]

1 Hinge part 2 Hinge piece
3 Hinge piece 4 Hinge base 5 Through hole
6 Groove 9 Open / close operation part 12 Top cover
13 Lower cover 14 Upper claw 15a, 15b Lower claw
16 Lock claw 21 Canula 22 Wing
24 flexible tube

[Procedure amendment]

[Submission date] September 21, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 5

[Correction method] Change

[Correction content]

[Figure 5]

Claims (2)

[Claims] 1. A protector for accommodating a used canula of a winged indwelling needle comprising a canula, a winged hub and a flexible tube, wherein a pair of opposed hinge pieces and the hinge piece are openably and closably connected. A hinge base, a through hole through which the flexible tube is inserted is formed in the hinge base, and a groove in which a blade piece of a hub is loosely fitted is formed between the pair of hinge pieces; An opening / closing operation unit including a projecting piece projecting from the base portion in a direction opposite to the hinge piece, an upper cover connected to one of the hinge pieces, and a lower cover connected to the other of the hinge pieces. Indwelling needle protector with wings. 2. An upper claw formed on the inner surface of the front end of the upper cover and a lower claw formed on the inner surface of the front end of the lower cover. When the two are engaged with each other, the upper cover and the lower cover cannot be opened. The protector for an indwelling needle with a wing according to claim 1, further comprising a locking claw for restraining.