JPH09276390A - Injection needle recovery device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To securely and smoothly perform holding and rotating operation of all kinds of syringes, by inserting a syringe main body into a syringe support part to actuate a switch to drive friction rolls and the injection needle is screwed back to drop the syringe needle in a storing vessel. SOLUTION: A power source device 10 is actuated to enable DC voltage to be outputted. A syringe main body 6 screwed with a injection needle 7 after use is inserted into an injection needle support member 5 through a taper hole 4 of a case cover 2 to engage a shoulder part 6a of the syringe main body 6 with the inner face of a reduced diameter part 5c. Thus the injection needle 7 is brought into a condition to be clamped by rubber rolls. Simultaneously a switch operation member 9 is depressed to turn on a limit switch 11 to drive a motor 24 to rotate rubber rolls 22. The injection needle 7 clamped between rubber rolls 22 is rotated in the direction to screw back to be detached from the syringe main body 6 and is stored in a case main body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved needle collecting device used for collecting and discarding used needles.

[0002]

2. Description of the Related Art Generally, a used injection needle is stored again in a needle cap stored before use, removed from a syringe body, stored in a predetermined container, and then discarded. This procedure relies entirely on the manual work of health care workers.

[0003] This syringe body is fixed by screwing it so as not to come off easily, because it is used for general medical purposes in which a syringe needle is simply fitted and attached to this syringe body and for inoculation near bone tissue. Some are for dental use.

[0004] By the way, there is a great interest among medical personnel regarding the risk of infection accidents such as HIV (commonly known as AIDS) and hepatitis caused by mishandling a used injection needle. Therefore, in particular, used dental injection needles whose removal is troublesome are handled carefully.

For this reason, various devices have been proposed in the past for automatically collecting used syringe needles from the main body of a syringe by using power rather than manually performing them by a medical staff. It has reached.

[0006]

However, in such a conventional injection needle collecting device, the mechanism for gripping and removing the injection needle screwed into the syringe body is complicated, and the member for gripping the injection needle is complicated. Is made of a soft resin material such as neoprene, the gripping force of the injection needle will decrease significantly due to deterioration of quality and wear of the resin over time, and it may become impossible or difficult to grasp depending on the shape and size of the injection needle. There were issues such as excessive power.

The present invention solves the above-mentioned conventional problems, and makes it possible to reliably and smoothly carry out the rotating operation for screwing back the injection needle from the syringe body, and also for all injection needles. An object of the present invention is to provide an injection needle recovery device that can easily handle gripping and rotating operations.

[0008]

In order to achieve the above-mentioned object, an injection needle collecting device according to the invention of claim 1 is a case cover provided with a syringe support part for supporting the syringe body so that the syringe body can be inserted, and A switch that is activated when the syringe body reaches the set position of the syringe support, a motor that is driven by the operation of the switch, and a motor that is installed below the syringe support and is horizontally rotated in a certain direction by driving the motor. A rotating disc having a central hole, and an injection needle that is vertically rotatably opposed to the rotating disc and is supported by the syringe supporting portion and screwed to the syringe body or the injection needle in a fitted state. A friction roll that holds a storage container that can be stored is provided, and the injection needle or the injection needle that falls through the center hole in the case body that detachably supports the case cover. It is obtained so as to accommodate the container accommodating the needle.

Further, in the injection needle collecting device according to a second aspect of the present invention, the friction roll can be rotated only in the direction in which the friction roll is delivered downward while holding the injection needle or the storage container storing the injection needle. is there.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing an injection needle recovery device of the present invention, in which 1 is substantially The case main body has a bottom cylindrical shape, and the bottom end inner circumference of a case cover 2 also having a bottomed cylindrical shape is detachably screwed at a screwing portion 3 to the upper outer circumference of the case main body 1.

Reference numeral 4 denotes a taper hole which is formed in the center of the top plate portion 2a of the case cover 2 and inclines so as to narrow downward. A syringe supporting member 5 as a syringe supporting portion having a tapered hole 5a and a straight hole 5b is integrally projected.

The straight hole 5b of the syringe support member 5
The inner diameter of the syringe body 6 is such that the syringe body 6 can be smoothly inserted and a predetermined grip force (friction force) is generated in the circumferential direction, and the syringe support member 5 is reduced in diameter so as to be squeezed at the lower end. At the inner surface of the syringe support member 5 of the reduced diameter portion 5c, the shoulder portion 6a of the distal end portion of the syringe body 6 to be inserted is supported so as not to drop downward.

Therefore, at this time, the injection needle 7 screwed into the injection end portion 6b of the syringe body 6 following the shoulder portion 6a contacts the opening end of the reduced diameter portion 5c downwardly. It will be projected without doing.

Further, a vertically elongated hole 8 is formed in the lower end portion of the syringe support member 5 including the reduced diameter portion 5c, and a bent shape which can be moved up and down along the outer circumference of the syringe support member 5. The lower end of the switch operating member 9 is guided up and down in the vertically elongated hole 8 and further projects into the straight hole 5b.

The upper end of the switch operating member 9 is an operator 11 of a limit switch 11 which is a switch near the power supply device 10 installed in the case cover 2.
It faces or contacts a.

Reference numeral 12 is a spring for constantly urging the switch operating member 9 upward, and its upper end is fixed to the upper part of the outer periphery of the syringe supporting member 5.

On the other hand, 13 is a support plate provided on the case cover 2 so as to close the lower end opening thereof, and a bearing 15 is provided in a through hole 14 formed in the center of the support plate 13. A shaft cylinder member 17 integrated with a large gear 16 as a turntable is supported rotatably therethrough.

Through holes 18 and 19 which are sufficiently larger than the outer diameter of the injection needle 7 are formed through the central shafts of the large gear 16 and the shaft cylinder member 17.

Reference numeral 28 is a snap ring for fixing the bearing 15.

Further, on the upper surface of the large gear 16,
As shown in FIGS. 2 and 3, four brackets 21 having L-shaped rising pieces 21b integrally formed on the bottom portion 21a are erected at equal intervals (equal angles). A rubber roll 22 as a friction roll is attached between the rising pieces 21b facing each other so as to be rotatable around a horizontal support shaft 23.

The rubber rolls 22 face each other on the large gear 16 at an angle of 90 °.

When the syringe main body 6 is inserted into the straight hole 5b of the syringe support member 5, the injection needle 7 attached to the distal end of the syringe main body 6 can be clamped at a position and a height at which the body portion can be clamped. Each rubber roll 22 is arranged.

Here, as shown in FIG. 1, the rubber rolls 22 can only rotate in the direction in which the injection needle 7 falls downwardly. Therefore, a one-way clutch or the like is attached to the horizontal support shaft 23. It is arranged.

That is, the used injection needle 7 is the syringe body 6
It is designed to avoid the danger of being sent out in the opposite direction to the insertion direction.

Next, 24 is a motor mounted in the case cover 2, and 25 is a reducer which is connected to the motor 24 to reduce the rotation of the motor 24. The output shaft 26 of the disk-shaped gear 2
7 is attached.

The gear 27 is engaged with the large gear 16 at the outer peripheral portion thereof, whereby the rotation of the motor 24 can be decelerated and transmitted to the large gear 16.

Next, the operation will be described. First, A
Insert a plug (not shown) into the AC power outlet and turn on the power switch to operate the power supply device 10.
It is possible to output a DC voltage of 12 volts.

In this state, the medical worker inserts the syringe main body 6 in which the used injection needle 7 is screwed into the distal end into the taper hole 5a of the injection needle supporting member 5 and the straight through the taper hole 4 of the case cover 2. Insert into hole 5b.

This insertion is carried out by the above-mentioned shoulder 6a of the syringe body 6.
Is locked on the inner surface of the reduced diameter portion 5c of the syringe support member 5.

That is, by the insertion operation of the syringe main body 6 to the locking position, the injection needle 7 screwed into the lower end of the syringe main body 6 enters between the four rubber rolls 22 while receiving frictional resistance. That is, the injection needle 7
In the vicinity of the body, the four rubber rolls 22 sandwich the body.

On the other hand, along with this operation, during the insertion operation into the inner surface of the reduced diameter portion 5c of the syringe body 6, the shoulder portion 6a of the syringe body 6 pushes the lower end of the switch operating member 9 down the vertically elongated hole 8, When the switch operating member 9 is lowered, the upper end of the switch operating member 9 is moved to the limit switch 1 described above.
The operator 11a of No. 1 is pushed down.

Therefore, the limit switch 11 is turned on, and the power supply voltage is applied from the power supply device 10 to the motor 24 via the limit switch 11. Therefore, the motor 24 starts driving, and its rotation causes the reduction gear 2 to rotate.
It is decelerated at 5 and transmitted to the gear 27.

Further, the horizontal rotation of the gear 27 is transmitted to the large gear 16 meshing with the gear 27, and the four rubber rolls 22 rotatably supported on the large gear 16 via brackets 21 are also provided. Rotate horizontally.

Since these rubber rolls 22 hold the injection needle 7 as described above, the horizontal rotation causes
With respect to the syringe main body 6 which is held by the syringe support member 5 so as not to rotate, only the injection needle 7 is rotated in the direction of loosening the screw.

By the rotation of the injection needle 7, the injection needle 7 is positively removed from the screw-type injection end portion of the syringe body 6, and the removal operation, that is, the screw feed of the injection needle 7 is performed. As each rubber roll 22 is lowered,
Rotate only in the direction of transporting.

The rubber rolls 22 do not reverse by the one-way clutch action, and in combination with the screw feeding action, the injection needle 7 finally separates from the rubber rolls 22 and falls by its own weight.

Then, the dropped injection needle 7 successively drops through the large gear 16 and the through holes 18, 19 of the shaft cylinder member 17, and is finally stored in the case body 1. .

In this way, the injection needles 7 that are successively removed from the syringe body 6 are stored in the case body 1,
When these have reached the set number, this case body 1
The screwing portion 3 between the case cover 2 and the case cover 2 is released, and a cap (not shown) prepared in advance is fitted into the opening of the case body 1, and the injection needle 7 is attached to each case body 1. It will be disposed of.

In the above-mentioned embodiment, the injection needle 7 is directly sandwiched by the rubber roll 22 and is dropped on the large-sized gear 16 while being rotated, but the injection needle 7 used is attached. Before inserting the syringe main body 6 into the syringe support member 5, a storage container (not shown) capable of storing the injection needle 7 in a fitted state is provided in the syringe support member 5.
The rubber body 22 is preliminarily interposed between the rubber rolls 22, and then the syringe body 6 with the injection needle 7 is inserted into the syringe support member 5 so that the injection needle fits in the storage container. Then, by rotating the large gear 16, the injection needle 7 can be dropped into the case body 1 together with the storage container while loosening the injection needle 7 from the syringe body 6.

[0040]

As described above, according to the first aspect of the present invention, the case cover provided with the syringe support portion for supporting the syringe body so that the syringe body can be inserted, and the syringe body at the set position of the syringe support portion. A switch that activates when it arrives,
A motor driven by the operation of the switch, and a turntable installed below the syringe support part and having a central hole that horizontally rotates in a certain direction by driving the motor,
Friction for sandwiching an injection needle, which is vertically rotatably opposed on the turntable and is screwed to the syringe body supported by the syringe support portion, or a storage container capable of storing the injection needle in a fitted state. A syringe is provided so as to accommodate the injection needle or the storage container accommodating the injection needle that falls through the center hole in a case body that removably supports the case cover. In addition to enabling reliable and long-term rotation operation for unscrewing the injection needle from, it is possible to obtain gripping and rotation operations for all injection needles.

According to the second aspect of the present invention, the friction roll is configured to be rotatable only in a direction in which the friction needle or the storage container accommodating the injection needle is clamped and delivered downward. By using the screw feeding operation of the injection needle with respect to the syringe, the injection needle sandwiched by the friction rolls can be dropped only downward, and the effect of disposing of the injection needle can be performed safely and inexpensively.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an injection needle recovery device according to an embodiment of the present invention.

FIG. 2 is a plan view showing the vicinity of a rubber roll in FIG.

FIG. 3 is a perspective view showing the vicinity of a rubber roll in FIG.

[Explanation of symbols]

 1 Case Main Body 2 Case Cover 5 Syringe Supporting Member (Syringe Supporting Part) 6 Syringe Main Body 7 Injection Needle 11 Limit Switch (Switch) 16 Large Gear (Rotating Disk) 22 Rubber Roll (Friction Roll) 24 Motor

Claims (2)

[Claims] 1. A case cover provided with a syringe support portion that supports the syringe body so that the syringe body can be inserted, a switch that operates when the syringe body reaches a set position of the syringe support portion, and a switch driven by the operation of the switch. Motor, a rotary disc installed below the syringe support part and having a central hole that is horizontally rotated in a certain direction by the drive of the motor, and is vertically rotatably opposed to the rotary disc. A friction roll for sandwiching an injection needle screwed to the syringe main body supported by a support portion or a storage container capable of storing the injection needle in a fitted state, and the center hole detachably supporting the case cover. An injection needle recovery device, comprising: a case main body for accommodating the injection needle or the storage container accommodating the injection needle, which is dropped through the case. 2. The injection according to claim 1, wherein the friction roll is rotatable only in a direction in which the injection needle or a storage container accommodating the injection needle is clamped and delivered downward. Needle recovery device.