Syringe delivery device for dosing system

Abstract

The utility model discloses an injector conveying device for a liquid preparation system, which is a device for conveying an injector from a first station of the liquid preparation system to a second station of the liquid preparation system. The injector conveying device comprises a base, a bearing part used for bearing an injector and enabling the injector to be located at a first station, a pushing part used for fixing and pushing the injector located at the first station and a driving part used for driving the pushing part to move, and the bearing part and the driving part are arranged on the base. The pushing part is driven by the driving part to move to the first station and fix the injector, so that the injector is driven to be separated from the bearing part, and then the injector is pushed to the second station. Therefore, the injector conveying device for the liquid preparation system can reduce the possibility that the injector is blocked when being transferred among different stations.

Description

Technical Field

[0001] The utility model generally relates to the field of medical machinery, and particularly relates to a syringe conveying device for a liquid preparation system. Background Art

[0002] Infusion is a commonly used clinical medical method. Through this medical method, liquid substances such as medicinal liquids and nutrient solutions can be infused into a patient's body to help the patient recover. When a patient needs to receive an infusion, medical staff often need to mix a variety of different infusion drugs according to the patient's condition to prepare a therapeutic liquid medicine with better curative effect. In clinical practice, medical staff can transfer the drugs in different containers such as ampoules or vials to an infusion bag for mixing to obtain the therapeutic liquid medicine required by the patient.

[0003] To solve the problem that it is difficult to meet the relatively large liquid preparation demand due to the shortage of medical staff, a liquid preparation system with automated liquid preparation is usually used to assist medical staff in preparing liquid medicines. The liquid preparation system usually uses a syringe to automatically prepare liquid medicines according to a prescription. To avoid cross-contamination of liquid medicines with different prescriptions, usually one syringe is used for one prescription for liquid preparation. Specifically, if the first syringe is used to prepare the liquid medicine of the first prescription in the liquid preparation system, then the second syringe needs to be replaced when preparing the liquid medicine of the second prescription. Therefore, during the liquid preparation process of the liquid preparation system, it may be necessary to convey multiple syringes to the liquid preparation system.

[0004] To solve the problem of conveying syringes to the liquid preparation system, the prior art generally sets two opposite workstations (such as a temporary storage workstation and a receiving workstation), and a pair of chute members are respectively arranged on the two workstations, and a guide rail connecting the two workstations is formed by using the two pairs of chute members. When conveying a syringe, first place the syringe on the temporary storage workstation, and then use a pushing device to push the syringe from the temporary storage workstation along the guide rail to the receiving workstation, so that the liquid preparation system can obtain the syringe from the receiving workstation. However, there may be a problem of jamming when the syringe moves on the guide rail (that is, the syringe may be stuck between the two workstations). Summary of the Invention

[0005] The present utility model is proposed in view of the above situation, and the purpose is to provide a syringe conveying device for a liquid preparation system that can reduce the possibility of jamming when the syringe is transferred between different workstations.

[0006] To this end, the present utility model provides a syringe conveying device for a liquid preparation system, which is a device for conveying a syringe from a first station of the liquid preparation system to a second station of the liquid preparation system. The device includes a base, a carrying part for carrying the syringe and positioning the syringe at the first station, a pushing part for fixing and pushing the syringe located at the first station, and a driving part for driving the pushing part to move. Wherein, the carrying part and the driving part are arranged on the base. When conveying the syringe, the pushing part moves to the first station under the drive of the driving part and fixes the syringe, thereby driving the syringe to disengage from the carrying part, and then pushing the syringe to the second station.

[0007] In the present utility model, the carrying part can carry the syringe and position the syringe at the first station. When conveying the syringe, the pushing part moves to the first station under the drive of the driving part and fixes the syringe. Further, the pushing part can drive the syringe to disengage from the carrying part and push the syringe to the second station under the drive of the driving part. In this case, since there is no physical connection established between the first station and the second station, the conveyance of the syringe is to transfer the syringe from the first station to the second station by the pushing part fixing the syringe. Compared with pushing the syringe along a guide rail connecting the first station and the second station from the first station to the second station, the possibility of the syringe getting stuck during the movement between the first station and the second station can be reduced. Additionally, due to the fixing action exerted by the pushing part on the syringe, the possibility of the syringe falling during the conveyance can be reduced.

[0008] In addition, in the syringe conveying device for a liquid preparation system according to the present utility model, optionally, the syringe includes a syringe barrel for containing the injection solution, and the pushing part fixes the syringe by adsorbing and / or clamping the syringe barrel. Thereby, the firmness of the pushing part in fixing the syringe can be improved.

[0009] In addition, in the syringe conveying device for a liquid preparation system according to the present utility model, optionally, the pushing part has an arc-shaped groove that fits with the syringe barrel. In this case, when the pushing part fixes the syringe, by utilizing the mutual fitting of the arc-shaped groove and the syringe barrel, the stability of fixing the syringe can be improved.

[0010] In addition, in the syringe conveying device for a liquid dispensing system according to the present utility model, optionally, a plurality of nozzles capable of generating vacuum adsorption are provided at the bottom of the arc-shaped groove, the pushing part includes a vacuum generator connected to the plurality of nozzles, and the pushing part adsorbs the syringe barrel through the plurality of nozzles. In this case, compared with fixing the syringe by clamping or gripping the syringe barrel, fixing the syringe by vacuum adsorption can reduce the direct contact between the pushing part and the syringe, thereby reducing the risk of damage or deformation of the syringe surface caused by fixing the syringe. In addition, due to the fast response characteristic of vacuum adsorption, the fixing and releasing of the syringe can be achieved quickly through vacuum adsorption, thereby improving the efficiency of conveying the syringe.

[0011] In addition, in the syringe conveying device for a liquid dispensing system according to the present utility model, optionally, the pushing part includes a first clamping arm and a second clamping arm arranged oppositely, the first clamping arm can move towards or away from the second clamping arm, and the pushing part clamps the syringe barrel by moving the first clamping arm towards the second clamping arm. In this case, fixing the syringe by clamping the syringe barrel can improve the stability of the pushing part in fixing the syringe.

[0012] In addition, in the syringe conveying device for a liquid dispensing system according to the present utility model, optionally, the driving part includes a motor, the syringe conveying device includes a transmission part for connecting the driving part and the pushing part, and the transmission part is configured to convert the rotational motion of the driving part into a linear motion of the pushing part. In this case, since the motor can output a rotational motion with relatively high precision, converting the rotational motion of the motor into a linear motion through the transmission part and transmitting it to the pushing part can make the linear motion of the pushing part easy to control and improve the precision of the pushing part moving along a straight line.

[0013] In addition, in the syringe conveying device for a liquid dispensing system according to the present utility model, optionally, the transmission part includes a crank, a connecting rod, and a slider capable of moving linearly on the base, one end of the crank is fixedly connected to the output shaft of the motor, the other end is hinged to the connecting rod, the connecting rod is hinged to the slider, and the slider is fixedly connected to the pushing part. In this case, the rotational motion of the output shaft of the motor can be converted into a linear motion of the slider on the base, and since the slider and the pushing part are linked, the pushing part can be driven to move linearly.

[0014] In addition, in the syringe conveying device for a liquid dispensing system according to the present utility model, optionally, the bearing part includes a U-shaped notch, and the way the syringe is borne on the bearing part is that the syringe barrel is received in the notch and the flange of the syringe barrel is suspended on both sides of the notch. Thus, it is convenient to push the syringe away from the bearing part through an external action.

[0015] In addition, in the syringe conveying device for a liquid preparation system according to the present invention, optionally, the bearing portion includes a first arm and a second arm that are oppositely arranged to form the notch, and the first arm can move towards or away from the second arm. In this case, the size of the notch can be adjusted by the relative movement between the first arm and the second arm, so that the bearing portion can be adapted to bear syringes of different sizes.

[0016] In addition, in the syringe conveying device for a liquid preparation system according to the present invention, optionally, the bearing portion can rotate relative to the base to transfer the syringe from a position other than the first station to the first station. Thus, the flexibility of the first station to obtain syringes from the outside can be improved.

[0017] According to the present invention, it is possible to provide a syringe conveying device for a liquid preparation system that can reduce the possibility of jamming when the syringe is transferred between different stations. Description of the Drawings

[0018] The present invention will now be further explained in detail only by way of examples with reference to the drawings.

[0019] Figure 1 is a schematic diagram of the application scenario of the syringe conveying device according to the example of the present invention.

[0020] Figure 2 is a schematic diagram showing the syringe located at the first station according to the example of the present invention.

[0021] Figure 3 is a schematic diagram of the syringe according to the example of the present invention.

[0022] Figure 4 is a first perspective view of the syringe conveying device according to the example of the present invention.

[0023] Figure 5 is a second perspective view of the syringe conveying device according to the example of the present invention.

[0024] Figure 6 is a third perspective view of the syringe conveying device according to the example of the present invention.

[0025] Figure 7 is a schematic diagram showing the positions of the first limit switch and the second limit switch according to the example of the present invention.

[0026] Description of the Reference Numerals:

[0027] 1... Liquid dispensing system, 10... Suction and injection robot, W1... First station, W2... Second station,

[0028] 2... Syringe conveying device, 22... Carrying part, 220... Notch, 221... First arm, 222... Second arm, 24... Pushing part, 240... Arc-shaped groove, 242... Nozzle, 244... First clamping arm, 246... Second clamping arm, 25... Driving part, 252... Motor, 26... Base, L... Central axis, 262... Guide rail, 264... First limit switch, 266... Second limit switch, D... Pushing direction, 28... Transmission part, 282... Crank, 284... Connecting rod, 286... Slide block, 3... Syringe, 30... Barrel. Detailed implementation manner

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0030] It should be noted that the terms "first", "second", "third", and "fourth" in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices. In the following description, the same reference numerals are given to the same components, and repeated descriptions are omitted. In addition, the drawings are only schematic diagrams, and the proportional relationship of the sizes between components or the shapes of components may be different from the actual ones.

[0031] The present invention relates to a syringe conveying device for a liquid dispensing system, which can transfer syringes between different stations of the liquid dispensing system and can reduce the possibility of jamming when the syringes are transferred between different stations.

[0032] The syringe conveying device for a liquid dispensing system involved in the present invention can be abbreviated as a syringe conveying device or a conveying device. Sometimes it can also be called a delivery device, a pushing device, or a transfer device, etc.

[0033] Hereinafter, with reference to the accompanying drawings, the syringe conveying device involved in the present invention will be described.

[0034] Figure 1 FIG. 1 is a schematic diagram showing an application scenario of the syringe delivery device 2 according to an example of the present utility model. Figure 2 FIG. 2 is a schematic diagram showing the syringe 3 located at the first station W1 according to an example of the present utility model.

[0035] In some examples, the liquid dispensing system 1 can carry the syringe 3, the medicine bottle and the infusion bag, and transfer the liquid between the medicine bottle and the infusion bag through the syringe 3.

[0036] In some examples, referring to Figure 1 , the liquid dispensing system 1 may include an aspiration and injection robot 10. The aspiration and injection robot 10 can place the syringe 3 and carry it to a predetermined position, and then drive the syringe 3 to transfer the liquid between the medicine bottle and the infusion bag, thereby completing the preparation of the liquid medicine. In some examples, the aspiration and injection robot 10 may also be referred to as a syringe handling device.

[0037] In some examples, referring to Figure 1 , the liquid dispensing system 1 may include a syringe delivery device 2. The syringe delivery device 2 can be used to transport the syringe 3 from the first station W1 of the liquid dispensing system 1 to the second station W2 of the liquid dispensing system 1.

[0038] In some examples, referring to Figure 1 , the first station W1 may be a station for caching the syringe 3, and the second station W2 may be a station where the aspiration and injection robot 10 obtains the syringe 3. In some examples, the first station W1 can obtain the syringe 3 from the outside. In other words, the syringe 3 provided by the outside can be cached at the first station W1.

[0039] In some examples, referring to Figure 1 , the first station W1 and the second station W2 may be oppositely arranged. In this case, it is possible to facilitate the transfer of the syringe 3 from the first station W1 to the second station W2 in a linear pushing manner, thereby improving the convenience of transporting the syringe 3.

[0040] In some examples, referring to Figure 2 , the syringe delivery device 2 may include a carrier part 22 and a pushing part 24. The carrier part 22 can be used to carry the syringe 3, and the pushing part 24 can be used to push the syringe 3.

[0041] In some examples, referring to Figure 2 , the carrier part 22 can carry the syringe 3 and place the syringe 3 at the first station W1.

[0042] In some examples, the pushing part 24 can be used to fix the syringe 3. Further, the pushing part 24 can push the syringe 3 after fixing the syringe 3.

[0043] In some examples, the pushing part 24 can be used to fix and push the syringe 3 located at the first station W1. Specifically, referring to Figure 2 , when the carrying part 22 carries the syringe 3 and positions the syringe 3 at the first station W1, the pushing part 24 can move relative to the carrying part 22 to move towards the syringe 3, so that the pushing part 24 can abut against and fix the syringe 3. Further, after fixing the syringe 3, the pushing part 24 can push the syringe 3 away from the carrying part 22.

[0044] In some examples, the pushing part 24 fixing the syringe 3 can mean that the pushing part 24 and the syringe 3 are connected together by mechanical means and there is no relative movement between the two.

[0045] In some examples, referring to Figure 2 , the syringe conveying device 2 can include a driving part 25, and the driving part 25 can be used to drive the pushing part 24 to move. In some examples, the driving part 25 can drive the pushing part 24 to move in a straight line.

[0046] In some examples, the driving part 25 can drive the pushing part 24 to move in a straight line to the first station W1. Further, when the first station W1 and the second station W2 are oppositely arranged, the driving part 25 can drive the pushing part 24 to move in a straight line from the first station W1 to the second station W2.

[0047] In some examples, when conveying the syringe 3, the pushing part 24 can move to the first station W1 under the drive of the driving part 25 and fix the syringe 3, so as to drive the syringe 3 away from the carrying part 22, and then push the syringe 3 to the second station W2. In this case, since there is no physical connection established between the first station W1 and the second station W2, the conveyance of the syringe 3 is to transfer the syringe 3 from the first station W1 to the second station W2 by the pushing part 24 fixing the syringe 3. Compared with pushing the syringe 3 along the guide rail connecting the first station W1 and the second station W2 from the first station W1 to the second station W2, the possibility of the syringe 3 getting stuck when moving between the first station W1 and the second station W2 can be reduced. In addition, due to the fixing effect exerted by the pushing part 24 on the syringe 3, the possibility of the syringe 3 falling during conveyance can be reduced.

[0048] Specifically, referring to Figure 1, when the carrier part 22 carries the syringe 3 and positions the syringe 3 at the first station W1, the driving part 25 can drive the pushing part 24 to move linearly relative to the carrier part 22 towards the syringe 3. After the pushing part 24 abuts against the syringe 3, it can fix the syringe 3, and after the pushing part 24 fixes the syringe 3, it can continue to move under the drive of the driving part 25, so as to drive the syringe 3 away from the carrier part 22 (that is, away from the first station W1), and further push the syringe 3 to the second station W2. At this time, the pushing part 24 can stop moving.

[0049] In some examples, the pushing part 24 can be provided with a detection unit (such as a proximity switch), and the detection unit can be used to detect that the pushing part 24 abuts against the syringe 3, so that the pushing part 24 can start the function of fixing the syringe 3.

[0050] In some examples, referring to Figure 1 , the injection and aspiration robot 10 can first be located at the second station W2. When the pushing part 24 transports the syringe 3 to the second station W2, the injection and aspiration robot 10 can obtain the syringe 3 from the pushing part 24. Specifically, when the syringe 3 is transported to the second station W2 by the pushing part 24, the syringe 3 can abut against the injection and aspiration robot 10 located at the second station W2, so that the injection and aspiration robot 10 can fix the syringe 3. At this time, the pushing part 24 can release the syringe 3 so that the injection and aspiration robot 10 can obtain the syringe 3.

[0051] In some examples, after the injection and aspiration robot 10 fixes the syringe 3 at the second station W2, the injection and aspiration robot 10 can send a release signal to the syringe conveying device 2, and the pushing part 24 can release the syringe 3 based on the release signal.

[0052] In some examples, the pushing part 24 can move at a first speed under the drive of the driving part 25 until it abuts against the syringe 3, and after fixing the syringe 3, it can drive the syringe 3 to disengage from the carrier part 22 at a second speed. Among them, the second speed can be greater than the first speed. In this case, by making the driving part 25 abut against the syringe 3 at a slower speed, it is convenient for the pushing part 24 to stably and fully fix the syringe 3. After fixing the syringe 3, making the pushing part 24 drive the syringe 3 to disengage from the carrier part 22 at a faster speed can improve the efficiency of transporting the syringe 3 from the first station W1 to the second station W2.

[0053] In some examples, referring to Figure 2 , the syringe conveying device 2 can include a base 26, and the base 26 can be used to install the carrier part 22 and the driving part 25. In other words, the carrier part 22 and the driving part 25 can be arranged on the base 26.

[0054] In some examples, referring to Figure 2, a guide rail 262 may be provided on the base 26, and the guide rail 262 may be used to define the path and direction of the movement of the pushing part 24. In other words, the pushing part 24 may move linearly along the path and direction defined by the guide rail 262.

[0055] In some examples, the guide rail 262 may extend in the direction from the first station W1 to the second station W2, and the pushing part 24 may slide relative to the base 26 and the carrying part 22 along the guide rail 262.

[0056] Figure 3 is a schematic diagram showing the syringe 3 involved in the example of the present invention. Figure 4 is a first perspective schematic diagram showing the syringe delivery device 2 involved in the example of the present invention. Figure 5 is a second perspective schematic diagram showing the syringe delivery device 2 involved in the example of the present invention. Figure 6 is a third perspective schematic diagram showing the syringe delivery device 2 involved in the example of the present invention.

[0057] In some examples, the carrying part 22 may rotate relative to the base 26. In some examples, refer to Figure 4 , the base 26 may be in a disc shape, and the carrying part 22 may rotate relative to the base 26 about the central axis L of the base 26.

[0058] As described above, the carrying part 22 may carry the syringe 3 and place the syringe 3 at the first station W1. That is, after carrying the syringe 3, the carrying part 22 may place the syringe 3 at the first station W1. In some examples, after carrying the syringe 3, the carrying part 22 may place the syringe 3 at the first station W1 from a position other than the first station W1.

[0059] In some examples, when the carrying part 22 carries the syringe 3, the syringe 3 may be transferred to the first station W1 by rotating the carrying part 22 relative to the base 26. Specifically, the syringe 3 may be transferred from a position other than the first station W1 to the first station W1 by rotating the carrying part 22 relative to the base 26. Thus, the flexibility of the first station W1 to obtain the syringe 3 from the outside can be improved.

[0060] In some examples, refer to Figure 3 , the syringe 3 may include a syringe barrel 30, and the syringe barrel 30 may be used to contain an injection solution (such as a medicinal solution). In addition, the syringe 3 may also be called an injector.

[0061] In some examples, refer to Figure 4 , the carrying part 22 may include a U-shaped notch 220, and the notch 220 may be used to hang the syringe 3. Specifically, refer to Figure 2, the syringe 3 can be carried by the carrying part 22 in such a way that the syringe barrel 30 is received in the notch 220 and the flange of the syringe barrel 30 is suspended on both sides of the notch 220. Thus, it is possible to facilitate the pushing of the syringe 3 out of the carrying part 22 by an external action.

[0062] In some examples, referring to Figure 4 , the carrying part 22 may include a first arm 221 and a second arm 222, and the first arm 221 and the second arm 222 may be oppositely arranged to form the notch 220.

[0063] In some examples, the first arm 221 may move towards or away from the second arm 222. That is, the first arm 221 and the second arm 222 may move closer to or away from each other. In this case, the size of the notch 220 can be adjusted by the relative movement between the first arm 221 and the second arm 222, so that the carrying part 22 can be made suitable for carrying syringes 3 of different sizes.

[0064] In some examples, the carrying part 22 may include a first driver, and the first driver may be used to drive the first arm 221 and the second arm 222 to move towards or away from each other.

[0065] As described above, the pushing part 24 can fix the syringe 3. In some examples, the pushing part 24 can fix the syringe 3 by fixing the syringe barrel 30.

[0066] In some examples, the pushing part 24 can fix the syringe 3 by adsorbing the syringe barrel 30. In this case, since the syringe barrel 30 is the larger part of the syringe 3, the firmness of fixing the syringe 3 can be improved by adsorbing the syringe barrel 30.

[0067] In some examples, referring to Figure 5 , the pushing part 24 may have an arc-shaped groove 240, and the arc-shaped groove 240 may fit with the syringe barrel 30 (for example, the arc-shaped groove 240 may fit with the syringe barrel 30 along the axial direction of the syringe barrel 30). In this case, when the pushing part 24 fixes the syringe 3, by using the mutual fitting of the arc-shaped groove 240 and the syringe barrel 30, the stability of fixing the syringe 3 can be improved.

[0068] In some examples, referring to Figure 5 , a plurality of suction nozzles 242 capable of generating vacuum adsorption may be provided at the bottom of the arc-shaped groove 240 ( Figure 5One of the suction nozzles 242 is schematically indicated), and the pusher 24 can absorb the syringe 30 through multiple suction nozzles 242. In this case, compared with fixing the syringe 3 by clamping or clamping the syringe 30, fixing the syringe 3 by vacuum adsorbing the syringe 30 can reduce the direct contact between the pusher 24 and the syringe 3, thereby reducing the risk of damage or deformation of the surface of the syringe 3 caused by fixing the syringe 3. In addition, since vacuum adsorption has the characteristic of rapid response, the syringe 3 can be fixed and released more quickly by vacuum adsorption, thereby improving the efficiency of transporting the syringe 3.

[0069] In some examples, the pushing portion 24 may include a vacuum generator, the vacuum generator may be connected to the plurality of suction nozzles 242 , and the vacuum generator may enable the plurality of suction nozzles 242 to generate a vacuum suction force.

[0070] In some examples, the pushing portion 24 can fix the syringe 3 by clamping the syringe 30. Thus, the firmness of the pushing portion 24 in fixing the syringe 3 can be improved.

[0071] For some examples, see Figure 5 The pusher 24 may include a first clamping arm 244 and a second clamping arm 246 disposed opposite to each other, and the first clamping arm 244 may move toward or away from the second clamping arm 246. In some examples, the pusher 24 may clamp the syringe 30 by moving the first clamping arm 244 and the second clamping arm 246 toward each other. In this case, the syringe 3 is fixed by clamping the syringe 30, which can improve the stability of the syringe 3 fixed by the pusher 24.

[0072] In some examples, the pushing portion 24 may include a second driver, and the second driver may be used to drive the first clamping arm 244 and the second clamping arm 246 to move toward or away from each other.

[0073] In addition, in some examples, the pushing portion 24 may fix the syringe 3 by adsorbing and clamping the syringe 30 .

[0074] For some examples, see Figure 5 , the pushing portion 24 may be located below the carrying portion 22. In addition, the pushing portion 24 may have a preset distance from the carrying portion 22 in the vertical direction. In this case, when the carrying portion 22 carries the syringe 3, the pushing portion 24 can easily fix the syringe 30 of the syringe 3 from below the carrying portion 22 and drive the syringe 3 to leave the carrying portion 22.

[0075] For some examples, see Figure 6 The syringe delivery device 2 may include a transmission part 28 , and the transmission part 28 may be used to connect the driving part 25 and the pushing part 24 .

[0076] In some examples, referring to Figure 6 , the driving part 25 may include a motor 252, and the transmission part 28 may be configured to convert the rotational motion of the driving part 25 into a linear motion of the pushing part 24. In this case, since the motor 252 can output a rotational motion with relatively high precision, by converting the rotational motion of the motor 252 into a linear motion through the transmission part 28 and transmitting it to the pushing part 24, the linear motion of the pushing part 24 can be easily controlled, and the precision of the linear motion of the pushing part 24 can be improved.

[0077] In some examples, the motor 252 may be a servo motor or a stepper motor.

[0078] In some examples, the driving part 25 may further include a speed reducer, and the speed reducer may be installed on the output shaft of the motor 252. Thus, the output torque of the motor 252 and the precision of motion control can be improved.

[0079] However, the present utility model is not limited thereto. In some other examples, the driving part 25 may also be a pneumatic component (such as a cylinder).

[0080] In some examples, referring to Figure 6 , the transmission part 28 may include a crank 282, a connecting rod 284, and a slider 286. Among them, the slider 286 may move linearly on the base 26.

[0081] In some examples, referring to Figure 6 , one end of the crank 282 may be fixedly connected to the output shaft of the motor 252, and the other end may be hinged to the connecting rod 284. In addition, the connecting rod 284 may be hinged to the slider 286, and the slider 286 may be fixedly connected to the pushing part 24. In this case, the rotational motion of the output shaft of the motor 252 can be converted into a linear motion of the slider 286 on the base 26, and since the slider 286 and the pushing part 24 are linked, the pushing part 24 can be driven to move linearly.

[0082] In some examples, referring to Figure 6 , the slider 286 may be slidably connected to the base 26 through a guide rail 262. Thus, it can provide guidance for the motion of the slider 286 to enable the slider 286 to move linearly on the base 26, and further drive the pushing part 24 to move linearly. In some examples, the slider 286 may also be slidably connected to the base 26 through a chute.

[0083] Figure 7 FIG. shows a schematic diagram of the positions of the first limit switch 264 and the second limit switch 266 involved in the examples of the present utility model.

[0084] In some examples, referring to Figure 7, on the path of the slider 286, along the direction from the first station W1 to the second station W2 (i.e., Figure 7 the pushing direction D shown), a first limit switch 264 and a second limit switch 266 can be sequentially arranged on the base 26. The first limit switch 264 and the second limit switch 266 can be used to limit the sliding stroke of the slider 286 on the base 26.

[0085] In some examples, the distance between the first limit switch 264 and the second limit switch 266 can be greater than the moving stroke of the syringe 3 from the first station W1 to the second station W2. In some examples, the distance between the first limit switch 264 and the second limit switch 266 can be set according to the moving stroke of the syringe 3 from the first station W1 to the second station W2.

[0086] In some examples, when the slider 286 is detected by the first limit switch 264, the pushing part 24 can be in the initial position, and at this time, the pushing part 24 may not contact the syringe 3 located at the first station W1.

[0087] In some examples, when the slider 286 is detected by the second limit switch 266, the pushing part 24 can push the syringe 3 to the second station W2. Thus, it is possible to facilitate the confirmation of whether the syringe 3 has been pushed in place.

[0088] In some examples, after the pushing part 24 pushes the syringe 3 to the second station W2 and the infusion robot 10 acquires the syringe 3, the pushing part 24 can return to the initial position under the drive of the driving part 25. Thus, the pushing part 24 can be prepared for transporting the next syringe 3.

[0089] In the present utility model, the carrying part 22 can carry the syringe 3 and make the syringe 3 located at the first station W1. When transporting the syringe 3, the pushing part 24 moves to the first station W1 under the drive of the driving part 25 and fixes the syringe 3. Further, the pushing part 24 can drive the syringe 3 to separate from the carrying part 22 and push the syringe 3 to the second station W2 under the drive of the driving part 25. In this case, since there is no physical connection established between the first station W1 and the second station W2, the transportation of the syringe 3 is to transfer the syringe 3 from the first station W1 to the second station W2 by the pushing part 24 fixing the syringe 3. Compared with pushing the syringe 3 along the guide rail connecting the first station W1 and the second station W2 from the first station W1 to the second station W2, the possibility of the syringe 3 getting stuck when moving between the first station W1 and the second station W2 can be reduced.

[0090] Although the present utility model has been specifically described above in conjunction with the accompanying drawings and examples, it is understood that the above description does not limit the present utility model in any way. Those skilled in the art can make deformations and changes to the present utility model as needed without departing from the essence and scope of the present utility model, and these deformations and changes all fall within the scope of the present utility model.

Claims

1. A syringe conveying device for a liquid preparation system, which is a device for conveying a syringe from a first station of the liquid preparation system to a second station of the liquid preparation system, and is characterized in that it includes a base, a carrying part for carrying the syringe and positioning the syringe at the first station, a pushing part for fixing and pushing the syringe located at the first station, and a driving part for driving the pushing part to move, wherein the carrying part and the driving part are arranged on the base. When conveying the syringe, the pushing part moves to the first station under the drive of the driving part and fixes the syringe, thereby driving the syringe to disengage from the carrying part, and then pushing the syringe to the second station.

2. The syringe conveying device according to claim 1, characterized in that the syringe includes a syringe barrel for accommodating the injection liquid, and the pushing part fixes the syringe by adsorbing and / or clamping the syringe barrel.

3. The syringe conveying device according to claim 2, characterized in that the pushing part has an arc-shaped groove that fits the syringe barrel.

4. The syringe conveying device according to claim 3, characterized in that a plurality of suction nozzles capable of generating vacuum adsorption are provided at the bottom of the arc-shaped groove, the pushing part includes a vacuum generator connected to the plurality of suction nozzles, and the pushing part adsorbs the syringe barrel through the plurality of suction nozzles.

5. The syringe conveying device according to claim 2, characterized in that the pushing part includes a first clamping arm and a second clamping arm arranged oppositely, the first clamping arm can move towards or away from the second clamping arm, and the pushing part clamps the syringe barrel by moving the first clamping arm towards the second clamping arm.

6. The syringe conveying device according to claim 1, characterized in that the driving part includes a motor, the syringe conveying device includes a transmission part for connecting the driving part and the pushing part, and the transmission part is configured to convert the rotational motion of the driving part into the linear motion of the pushing part.

7. The syringe conveying device according to claim 6, characterized in that the transmission part includes a crank, a connecting rod, and a slider that can move linearly on the base, one end of the crank is fixedly connected to the output shaft of the motor, the other end is hinged to the connecting rod, the connecting rod is hinged to the slider, and the slider is fixedly connected to the pushing part.

8. The syringe conveying device according to claim 2, characterized in that the carrying part includes a U-shaped notch, and the way the syringe is carried on the carrying part is that the syringe barrel is received in the notch and the flange of the syringe barrel is suspended on both sides of the notch.

9. The syringe conveying device according to claim 8, characterized in that the carrying part includes a first arm and a second arm arranged oppositely to form the notch, and the first arm can move towards or away from the second arm.

10. The syringe conveying device according to claim 1, characterized in that the carrying part can rotate relative to the base to transfer the syringe from a position other than the first station to the first station.

Images