KR20220000041U - Syringe filling apparatus - Google Patents

Abstract

The device comprises a syringe comprising an inlet having an injection nozzle for injecting a flowable substance into the syringe through a dispensing nozzle of the syringe, and a syringe holding plate for securing the syringe by pressing the dispensing nozzle of the syringe against the inlet. It relates to a filling device, wherein the injection nozzle is in the form of a cone or spindle. The device allows for rapid set-up of syringes of various sizes without the use of a coupler to connect the dispensing nozzle of the syringe to the inlet and allows for rapid filling of the syringe with the flowable material. And by allowing the rapid exchange of unfilled syringes for filled syringes, the device may be useful for mass production of flowable material-filled syringes of various sizes.

Description

Syringe Filling Device {SYRINGE FILLING APPARATUS}

The present invention relates to a syringe filling device having an injection nozzle and a syringe fixing plate.

A syringe for receiving a flowable substance has a dispensing nozzle at one end and a larger opening at the other end, the dispensing nozzle may be blocked or sealed, and the larger opening may be hermetically sealed by a piston. To expel material in the syringe, the dispensing nozzle is unblocked or the seal is broken, and the piston is pushed into the syringe to displace the material in the syringe through the dispensing nozzle.

For the production of flowable substance-filled syringes, devices for filling syringes or cartridges by means of high pressure pumping systems are known.

For example, Patent Document 1 discloses a liquid filling apparatus including a liquid pressure valve, a syringe, and a cylinder having a cylinder rod, wherein the liquid pressure valve injects a liquid supplied from a tank, a pump, and a cartridge The syringe can be filled to a certain volume with the liquid discharged from the liquid pressure valve, and the fluid discharged from the liquid pressure valve is raised inside the syringe with the cylinder rod inserted into the lower end of the syringe. When the cylinder rod in the cylinder pressurizes the liquid filling the inside of the syringe to a certain pressure.

Patent Document 2 discloses a base body including a fluid storage tank and a hydraulic supply motor; liquid supply unit; and a liquid filling unit, wherein the liquid supply unit includes: left and right hydraulic cylinders; fountain; piston connecting rod; and a pressure piston, wherein the liquid filling unit includes: a dispenser valve; syringe; and an anti-release cylinder having a cylinder rod and supporting an inner cap of the syringe.

Patent Document 3 discloses a liquid syringe filling apparatus for removing air bubbles and preventing air bubbles from forming, the apparatus comprising: a storage container sealed by a cover for storing a liquid to be pumped; a first pressurizing unit for pushing the liquid inside the storage container to the outside; a pumping valve connected to the cover through the liquid inlet pipe to allow the syringe to be mounted to allow pumped liquid to fill the interior of the syringe; and a controller for controlling the pumping time difference for replacing the syringe by controlling the pressing force of the first pressurization unit and the pressure of air supplied to the pumping valve, wherein the cover is a cover for discharging air bubbles contained in the liquid stored in the storage container. It includes a vent installed on the top.

However, these devices have the problem of requiring the use of a specific coupler to connect the dispensing nozzle to the injection port, requiring the coupler to be changed when the size of the syringe is changed. Accordingly, these devices overcome the difficulties of enabling the rapid installation of syringes of various sizes, the rapid filling of syringes with flowable materials, and the rapid exchange of filled syringes with unfilled syringes without the use of couplers. have

Patent Literature

Patent Document 1: Korean Patent Application Publication No. 10-2012-0058492 A

Patent Document 2: Korean Patent Application Publication No. 10-2017-0125702 A

Patent Document 3: Korean Patent Application Publication No. 10-2019-0063236 A

Challenge to be solved

The present invention provides rapid installation of syringes of various sizes without using a coupler to connect the dispensing nozzle of the syringe to an injection port, rapid filling of syringes with a flowable material, and rapid filling of filled syringes into unfilled syringes. It is intended to provide a syringe filling device which makes it possible to exchange.

means of solving the problem

In order to solve the above problems, the present invention provides an injection port having an injection nozzle for injecting a flowable substance into a syringe through a dispensing nozzle of the syringe, and pressing the dispensing nozzle of the syringe against the injection port thereby comprising a syringe holding plate for holding the syringe, and the injection nozzle is in the form of a cone or spindle.

In various embodiments, the injection port is removable from the device.

In various embodiments, the syringe fixing plate is moved up and down by a syringe fixing cylinder.

In various embodiments, the syringe has a piston disposed within the syringe.

In various embodiments, the syringe has a sensor rod that is mounted on the syringe such that the sensor rod is movable between a spaced apart position from the piston and a contact position where the piston is pressed against the piston by the weight of the sensor rod. are combined

In various embodiments, the syringe has a proximity sensor to detect the position of the sensor rod, and a proximity sensor position controller to control the height of the proximity sensor.

1 is a perspective view of an injection port in a syringe filling device of the present invention;
Figure 2 is a perspective view of another injection port in the syringe filling device of the present invention.
Fig. 3 is a schematic diagram showing the injection port being assembled into the syringe filling device of the present invention;
4 is an overall view of the syringe filling device of the present invention, with a small syringe installed in the device.
5 is an overall view of the syringe filling device of the present invention, with a large syringe installed in the device.
Justice
The terms "comprising" or "comprises" herein mean the concepts of "comprising", "comprising", "consisting essentially of (consisting of)" and "consisting of (consisting of)" used in their broadest sense to encompass. The use of “for example,” “such as,” “such as,” and “including” to enumerate illustrative examples is not limited to the recited examples only. Thus, "for example" or "such as" means "for example, but not limited to" or "such as, but not limited to," and encompasses other similar or equivalent examples.
The term "syringe" or "syringes" is used herein to mean and encompass the concept of "a cylindrical container having a dispensing nozzle at one end and a larger opening at the other end", such as "cartridge" in their broadest sense. is used as The terms "piston" or "pistons" are used herein in their broadest sense to mean and encompass the concept of "a material for hermetically sealing the larger opening of a syringe or cartridge", such as a "plunger". To expel material from the syringe, the dispensing nozzle is unblocked or the seal is broken, and a piston is pushed into the syringe to displace the material in the syringe through the dispensing nozzle.

In the following, exemplary embodiments of the present invention will be described in detail. The exemplary embodiment serves as an example implemented to describe the present invention without being limited to the scope of the present invention.

1 shows a perspective view of an injection port in the device, the injection port 1 having an injection nozzle 2 . 1 , the injection nozzle may be in the form of a cone. On the other hand, Figure 2 shows a perspective view of another injection port in the device. That is, as shown in FIG. 2 , the injection nozzle may be in the form of a spindle. The injection nozzle 2 may be made of stainless steel, but it may be made of other materials.

1 and 2 , screw holes 3 are provided, but they are optional if there is another way to connect the injection port 1 to the device. 3 shows a schematic diagram of a method of assembling the injection port 1 into the syringe filling device of the present invention. As shown in FIG. 3 , the injection port 1 is connected into the valve 6 by using a bolt 4 and a nut 5 . The injection port 1 may be removable from the device. This is because it is easy to thoroughly clean the injection part after use with any flowable material. It aids in cross-contamination between flowable substances for small-scale production of various products.

4 and 5 show an overall view of the syringe filling device of the present invention. 4 and 5, small and large syringes 7 are respectively installed in the device. The syringe 7 used in the device can have any size, but typically has a volume of 3 cc, 5 cc, 10 cc, 30 cc, 55 cc, 100 cc, 250 cc, or 500 cc.

The injection nozzle 2 of the injection port 1 is in contact with the dispensing nozzle of the syringe 7 . The dispensing nozzle is hermetically sealed to the injection port 1 . The flowable substance is injected into the syringe 7 through the dispensing nozzle of the syringe 7 . Conventional devices for filling syringes are only optimized for mass production of single products. Therefore, they are limited to different types of syringes with different sizes for different products. However, as shown in Figs. 4 and 5, according to the present invention, it is possible to increase the accuracy of filling the syringe by the flowable material. 4 and 5, when syringes of different sizes are installed, the injection port 1 with the injection nozzle 2 moves up and down in the longitudinal direction of the syringe so that the syringe is horizontally on the injection nozzle. Accurately seated helps avoid failure of flowable material filling.

In various embodiments, the syringe holding plate 8 is moved up and down by the syringe holding cylinder 9 to secure the syringe 7 to the injection port 1 . Once the syringe holding plate 8 abuts the larger opening of the syringe 7 , the syringe holding plate 8 is stopped. Thus, the syringe holding plate 8 can secure the syringe 7 on the injection port 1 .

In various embodiments, the syringe has a piston disposed within the syringe 7 . The piston is disposed in the syringe 7 such that it is movable linearly in the longitudinal direction of the syringe 7 , and when a flowable substance is injected into the syringe through the injection port 1 , the piston moves between the injection port 1 and the syringe 7 . ), hermetically seal the injected flowable material between the pistons in the In particular, the piston may be made of a flexible material. The piston is essentially circular when viewed from above along its longitudinal axis. The bottom surface of the piston may be flat or tapered with a lowest point in the middle of the bottom surface, so that the bottom surface has the same slope as the bottom inner surface of the syringe 7 and is essentially uniformly in contact with the bottom inner surface have.

In various embodiments, the syringe has a sensor rod 10 installed on a piston within the syringe 7 to detect the amount of flowable material injected. The sensor rod 10 is movable between a spaced apart position from the piston and a contact position in which the piston is pressed against the piston by the weight of the sensor rod 10 . When the sensor rod 10 is inserted into the piston in the syringe 7 , the sensor rod 10 transfers the weight of the sensor rod 10 to the piston along the longitudinal axis of the sensor rod 10 , thereby transferring the piston to the sensor rod. Press through (10). The piston can move more linearly along the inner wall of the syringe more stably. Thereby, when the flowable substance is injected into the syringe 7 through the injection port 1, the piston moves linearly along the inner wall of the syringe 7 without torsion within the syringe barrel, so that the outflow of the fluid passing through the piston Alternatively, overcharging can be prevented. The size of the sensor rod 10 is not fixed, but its diameter must be small enough to fit into the syringe 7 with some free space between the inner wall of the syringe 7 and the sensor rod 10, as further described below. As should be, it must also fit inside the piston. The length of the sensor rod 10 should be long enough for the support structure of the entire device so that it can move over the entire length of the syringe to be filled.

In various embodiments, the syringe 7 has a proximity sensor (not shown) for detecting the position of the sensor rod 10 , and a proximity sensor position controller 11 for controlling the height of the proximity sensor. The proximity sensor is disposed on top of the sensor rod 10 . The height of the proximity sensor may be controlled by the proximity sensor position controller 11 , and the volume of flowable material filled into the syringe is determined according to the height of the proximity sensor. The proximity sensor may detect the end of the sensor rod 10 , and when the proximity sensor detects a specific position of the end of the sensor rod 10 , the valve 6 is closed and the injection of the substance is stopped.

Industrial Applicability

The use of a coupler to connect the syringe's dispensing nozzle to the injection port is unnecessary for the syringe filling device of the present invention. Therefore, the present invention is useful for mass production of flowable material-filled syringes of various sizes.

Explanation of symbols

1: Injection port, 2: Injection nozzle, 3: Screw hole, 4: Bolt, 5: Nut, 6: Valve, 7: Syringe, 8: Syringe holding plate, 9: Syringe holding cylinder, 10: Sensor rod, 11: Proximity Sensor Position Controller

Claims (6)

A syringe filling apparatus comprising:
an injection port having an injection nozzle for injecting a flowable substance into the syringe through a dispensing nozzle of the syringe, and
a syringe fixing plate for fixing the syringe by pressing the dispensing nozzle of the syringe against the injection port;
wherein the injection nozzle is in the form of a cone or spindle. The syringe filling device of claim 1 , wherein the injection port is detachable from the device. The syringe filling device of claim 1, wherein the syringe fixing plate is moved up and down by a syringe fixing cylinder. The syringe filling device of claim 1 , wherein the syringe has a piston disposed within the syringe. According to claim 4, wherein the syringe has a sensor rod (sensor rod), the sensor rod is spaced apart from the piston, and a contact position in which the piston is pressed against the piston by the weight of the sensor rod. a syringe filling device coupled to the syringe to be movable therebetween. 6. The syringe filling device of claim 5, wherein the syringe has a proximity sensor to detect the position of the sensor rod, and a proximity sensor position controller to control the height of the proximity sensor.

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