JPH0345721Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to an improvement in a syringe crusher for crushing syringes, injection needles, drip needles, etc. More specifically, the present invention relates to a crusher that can reliably crush injection needles, drip needles, etc. in a short period of time.

[Prior art and its problems] In the past, syringes were mainly made of glass and were sterilized and used repeatedly, but recently, disposable syringes made of plastic have been increasingly used instead. This syringe has the advantage that it does not need to be sterilized after each use, so it is time-saving, and there is no need to worry about bacterial infection due to repeated use. However, used syringes and the like must be promptly disposed of as unusable. This is because sloppy disposal methods run the risk of causing problems, such as promoting the spread of stimulants, which is currently a major social problem. There was a desire for a device that could completely dispose of intravenous needles, etc. used in By the way, Japanese Unexamined Patent Publication No. 55-78966 discloses a crushing apparatus for medical instruments. This pulverization processing device has a pulverization device consisting of a group of rotating blades and a group of fixed blades, and is provided with a porous screen for the pulverized material formed in a semicircular arc shape below the group of rotary blades.
The waste syringes, needles, etc. are then crushed into fine particles while being agitated in the above-mentioned crushing device.
The pulverized waste flows down through the porous screen and is sent to the next process. According to this crushing device, syringes, injection needles, etc. are reduced to fine particles until they fall through the porous screen, which is sufficient as a disposal method. However, the problem is that it takes a long time to crush the waste because the waste cannot be transferred to the next step unless it is agitated and pulverized by the crushing device until it flows through the porous screen.

[Purpose of invention]

The inventor believes that the crushing of syringes and needles, etc.
The present invention was completed based on the realization that this purpose can be achieved by making it impossible to reuse. That is, an object of the present invention is to provide a crusher for syringes, etc., which can reliably render used syringes, needles, etc. unusable in a short period of time.

[Structure of the idea]

The structure of the present invention taken to achieve the above object is as follows. That is, the present invention is a crusher for syringes, etc., and the crusher has at least two crushing chambers, and one of the crushing chambers is formed in such a narrow size that the syringe needle is not horizontal. The crushing chamber includes a pressing roller that pinches and presses the object to be crushed between rollers arranged in parallel and sends it out, and a cutting roller that cuts the object that is sent from the pressing roller. The cutting roller includes: one roller having a plurality of cutting blades formed in a direction perpendicular to or substantially perpendicular to the falling direction of the material to be crushed; A crushing machine such as a syringe, which has the following: the other roller having a cutting surface that faces the formed cutting blade and cooperates with the cutting blade to cut the object to be crushed.

【Example】

The present invention will be explained in more detail based on embodiments shown in the drawings. Fig. 1 is a front view of main parts showing an embodiment of the present invention, Fig. 2 is a schematic cross-sectional view of Fig. 1, Fig. 3 is an explanatory diagram showing the arrangement of the pressure rollers, and Fig. 4 is a cutaway view. FIG. 5 is a schematic view showing another example of rollers, and a sectional view showing the relationship between each roller and a partition plate. The crusher A is arranged below the input chute 19 and the side plates 11, 11a.
It has a crushing chamber 1 surrounded by 11b and 11c. The crushing chamber 1 has casters at the bottom (not shown)
It is erected on a base frame 20 provided with. A loading box 2 is provided in the cabinet C on the loading chute 19, and a lid 2 is provided in the openings 22 and 23 on the upper surface of the loading box 2.
4 and 26 are provided. A partition plate 100 extending almost the entire length from the openings 22 and 23 of the input box 2 to the crushing chamber 1 is provided to create a narrow needle crushing chamber 10 and a wide syringe crushing chamber 10a, which crush needles and syringes. I try to do them separately. The width of the syringe crushing chamber 10a is set to 71 mm in this embodiment, and the width of the syringe crushing chamber 10 formed by the side plate 11 and the partition plate 100 is the length of a typical hypodermic needle (approximately 50 mm).
mm), and in this example it is set narrower than 23 mm.
It is. The input chute 19 is equipped with a sprayer (not shown), which can spray the necessary amount of disinfectant (mixture of disinfectant, deodorant, anticorrosion agent, etc.) onto the processed material such as a syringe to be input. I have to. Below the input chute 19, three pairs of rollers fixed to a shaft S are supported by bearing members 12, 12a attached to the outside of the side plates 11, 11a. The upper stage is the feed roller 14, and the rollers 141, 142 have circumferential grooves 158 formed at regular intervals.
are arranged side by side. The rollers 141 and 142 are installed with a predetermined gap between them. The middle stage is the pressure roller 15, and the roller 1 arranged in parallel
51, 152, and circumferential grooves 158 are formed in the rollers 151, 152 at regular intervals. The rollers 141, 142 and the rollers 151, 152 can be the same, but the roller 15
The gap between rollers 141 and 152 is provided with rollers 141 and 152 to press the syringe and make subsequent cutting smooth.
It is set slightly narrower than 142 spaces. In addition, although the rollers 141, 142, 151, and 152 are formed with hook grooves 143 evenly distributed at four locations in the axial direction, the number of hook grooves 143 is arbitrary. Note that the relationship between the circumferential groove 158 and the convex portion 159 of the rollers 151 and 152 is such that they are opposed to each other as shown in FIG. 3 (the same applies to the rollers 141 and 142).
According to this, the syringe or the like is placed in an upright state by the opposing circumferential grooves 158 and sent to the next cutting roller 16, so more cutting points can be obtained than in the case where the syringe or the like is placed diagonally or horizontally. Can be cut. The lower stage is the cutting roller 16, and the roller 1 installed in parallel
It consists of 61,162. The other roller 161 is a roller with a smooth cutting surface, and the one roller 162 has an arbitrary number of cutting blades 163 parallel to the axial direction formed on its outer periphery. Although the gap between the tip of the cutting blade 163 and the outer periphery of the roller 161 is small, the roller 161 is mounted so that it can move laterally, so that the gap with the tip of the cutting blade 163 can be adjusted as appropriate. Note that the roller 161 may have cutting surfaces 165 and biting recesses 166 alternately formed in the axial direction as shown in FIG. 4. As shown in FIG. 5, the needle crushing chamber 10
and a roller 14 provided in the syringe crushing chamber 10a.
1,142, roller 151,152, roller 16
1,162 are each divided into two separate bodies. That is, rollers 141, 142 and roller 1 are separate from the shaft S passing through the partition plate 100.
51, 152, and rollers 161, 162 are fixed, and a slight gap B is formed between them and the partition plate 100.
2. The rotation of the rollers 161, 162 is not obstructed, and crushed debris from syringes, etc. is prevented from entering. A gear 169 is attached to the shaft end of the roller 162, and is driven by a drive gear 170 of a drive motor M installed at the top of the base frame 20. Also, each roller 141, 142, 151, 152, 161, 16
2 is adapted to rotate in a predetermined direction by a series of gear transmission mechanisms G, and the rotational speed of each roller can be set arbitrarily. A lower chute 17 is installed below the cutting roller 16, and a receiving box 3 is provided below the lower chute 17. Function The function of this embodiment will be explained. (1) Activate the drive motor M, and separately charge the syringe from the charging box 2 into the syringe crushing chamber 10a and the syringe needle into the syringe needle crushing chamber 10. (2) The inserted injection needle and syringe are sent by the feed roller 14 to the pressure roller 15 below.
A small syringe can be directly engaged with the next pressure roller, but a large syringe cannot be directly engaged with the pressure roller 15. Thereupon, the large syringe is pressed by the feed roller 14 to the same thickness as the small syringe and sent to the pressing roller 15. (3) The injection needle stands between the side wall 11 and the partition plate 100, and the syringe fits into the circumferential groove 158 of the pressure roller 15.
The sheet is erected by a roller, press-molded so that it can be easily cut, and sent to the cutting roller 16 below. (4) The sent injection needles and syringes are cut by the cutting roller 16 and sent to the receiving box 3 through the lower chute 17. At this time, the injection needle is not parallel to the cutting blade 163 and is reliably cut by the injection needle crushing chamber 10 which is set narrower than the injection needle. The crushed materials stored in receiving box 3 are then disposed of.
Or be incinerated. Note that the present invention is not limited to the illustrated embodiment, and the series of operations described above can be automated using various known techniques. That is, when a syringe is introduced into the injection chute 19, this is sensed by various switches and sensors, and the drive motor M is powered on. Then, the timer is activated for an arbitrary period of time (2 to 3 minutes) to crush the syringe. In addition, when any of the rollers becomes locked and a load is applied, the power can be automatically turned off so that the operation can be stopped. As described above, various modifications are possible within the scope of the claims for utility model registration.

[Effect of the idea]

The present invention has the above configuration and has the following effects. (1) The crushing chamber includes a pressing roller that pinches and presses the material to be crushed between rollers installed in parallel, and a cutting device that cuts the material that is sent from the pressing rollers. one of the cutting rollers is provided with a plurality of cutting blades formed in a direction perpendicular to or substantially perpendicular to the falling direction of the material to be crushed; The other roller is opposite to the cutting blade formed on the roller and has a cutting surface formed thereon that cooperates with the cutting blade to cut the object to be crushed. Therefore, the input material to be crushed is first pressed by a pressing roller and then cut by a cutting roller for processing. In this way, the crushing process of the material to be crushed is not carried out in the crushing chamber while being stirred many times until it becomes fine particles, but it is completed by flowing in only one direction, inputting from one side and discharging from the other. , the material to be crushed can be processed in a short time. (2) One of the crushing chambers is so narrow that the injection needle cannot be placed horizontally, and the cutting rollers installed in the crushing chamber are designed to prevent the crushing material from being crushed in a direction perpendicular or approximately perpendicular to the falling direction. One roller has a plurality of intersecting cutting blades formed thereon, and one roller faces the cutting blade formed on the other roller, and works with the cutting blade to cut the object to be crushed. and the other roller having a surface formed thereon. Therefore, the injection needle is reliably cut and crushed by the cutting blade without being horizontal.

[Brief explanation of the drawing]

Fig. 1 is a front view of main parts showing an embodiment of the present invention, Fig. 2 is a schematic cross-sectional view of Fig. 1, Fig. 3 is an explanatory diagram showing the arrangement of the pressure rollers, and Fig. 4 is a cutaway view. FIG. 5 is a schematic view showing another example of rollers, and a sectional view showing the relationship between each roller and a partition plate. A: crusher, 1: crushing chamber, 10: syringe crushing chamber, 10a: syringe crushing chamber, 14: feed roller,
15: Pressing roller, 16: Cutting roller, 19: Input chute, 100: Partition plate.

Claims (1)

[Scope of Claim for Utility Model Registration] A crusher for syringes, etc., the crusher having at least two crushing chambers, one of the crushing chambers being so narrow that the syringe needle is not horizontal. The crushing chamber has a pressing roller that pinches and presses the material to be crushed between rollers arranged in parallel, and a cutting device that cuts the material that is sent from the pressing rollers. one of the cutting rollers is provided with a plurality of cutting blades formed in a direction perpendicular to or substantially perpendicular to the falling direction of the object to be crushed; A crushing machine such as a syringe, the other roller having a cutting surface facing the cutting blade formed on the roller and cooperating with the cutting blade to cut an object to be crushed.