Powder injection diluting device

Abstract

The utility model discloses a powder injection diluting device, which relates to the technical field of medical instruments, and comprises an injection bottle base, an injection driving mechanism and a controller, the injection bottle base is used for supporting an injection bottle, a first weight sensor is arranged on the injection bottle base, the first weight sensor can measure the weight of an object borne on the injection bottle base, and the controller is used for controlling the injection driving mechanism. The injection driving mechanism can drive the injector to inject a dissolving agent into the injection bottle, the controller is in signal connection with the first weight sensor and the injection driving mechanism, the first weight sensor can transmit measured weight information to the controller, and the controller can control starting and stopping of the injection driving mechanism. According to the powder injection diluting device, the first weight sensor is used for measuring the weight of a medicament in the injection bottle and transmitting the weight to the controller, and the controller controls the injector to inject a dissolving agent into the injection bottle or stop injecting the dissolving agent, so that the accuracy of the adding amount of the dissolving agent can be improved, and the accuracy of the dilution concentration of the powder injection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a powder injection dilution device. Background Art

[0002] Powder injection, as a dosage form, is in powder or block form and is filled in a vial or ampoule. When in use, a physician usually needs to use a syringe to extract a dissolving agent and inject it into the powder injection to dilute the powder or block medicine in the vial or ampoule. Chinese utility model patent CN206951009U provides a clinical drug rapid dissolution device. By arranging a motor under a turntable to drive the turntable to rotate back and forth, the powder injection injected with the dissolving agent on the turntable is gradually dissolved under the reciprocating rotation. However, since the dissolving agent still needs to be manually injected into the powder injection, the process is affected by factors such as the operator's perspective and operating habits. It is not easy to accurately control the amount of dissolving agent added, which in turn affects the accuracy of the powder injection dilution concentration. Utility Model Content

[0003] The purpose of the utility model is to provide a powder injection dilution device to solve the problems existing in the prior art and to improve the accuracy of the dilution concentration of the powder injection.

[0004] To achieve the above purpose, the present invention provides the following solutions:

[0005] The utility model provides a powder injection dilution device, comprising: an injection bottle base, for supporting the injection bottle, wherein a first weight sensor is provided on the injection bottle base, and the first weight sensor can measure the weight of an object carried on the injection bottle base; an injection drive mechanism, wherein the injection drive mechanism can drive a syringe to inject a dissolving agent into the injection bottle; and a controller, wherein the controller is signal-connected to the first weight sensor and the injection drive mechanism, the first weight sensor can transmit the measured weight information to the controller, and the controller can control the opening and closing of the injection drive mechanism.

[0006] In one embodiment, a shaking mechanism is further included, wherein the shaking mechanism is connected to the controller signal, and the shaking mechanism is connected to the ampoule bottle base and can drive the ampoule bottle base to reciprocate around a vertical axis.

[0007] In one embodiment, it further includes a shell, the ampoule bottle base, the shaking mechanism and the injection drive mechanism are all arranged in the shell, the shaking mechanism and the injection drive mechanism are both fixedly connected to the inner wall of the shell, and an openable protective panel is provided on the side wall of the shell.

[0008] In one embodiment, the housing further includes a solvent bottle base, the solvent bottle base being used to support the solvent bottle, a second weight sensor being provided on the solvent bottle base, the second weight sensor being capable of measuring the weight of an object carried by the solvent bottle base, the controller being connected to the second weight sensor and the controller signal, and the second weight sensor being capable of transmitting the measured weight information to the controller.

[0009] In one embodiment, a syringe moving device is further included, wherein the syringe moving device is connected to the controller signal, and the output component of the syringe moving device is connected to the injection drive mechanism, and the syringe moving device can drive the syringe on the injection drive mechanism to move to the solvent bottle and the injection bottle.

[0010] In one embodiment, the injection drive mechanism includes a clamping portion and an action portion, the clamping portion is used to clamp the syringe of the syringe, the action portion is connected to the controller signal, the action portion forms a movable connection with the clamping portion, and the action portion can move relative to the clamping portion and push or pull the piston rod of the syringe.

[0011] In one embodiment, the syringe moving device includes a cross slide, and the cross slide is capable of changing the position of the injection drive mechanism in the horizontal direction and the vertical direction.

[0012] In one embodiment, a first limiting member is further provided on the base of the ampoule bottle, and the first limiting member is used to limit the position of the ampoule bottle. A second limiting member is provided on the base of the solvent bottle, and the second limiting member is used to limit the position of the solvent bottle.

[0013] In one embodiment, the first limiting member and the second limiting member each have at least two contact portions, each of the contact portions is in point contact, line contact, or surface contact with the outer wall of the bottle body, and the distance between the contact portions is adjustable.

[0014] In one embodiment, the controller includes an operation panel disposed on the outer wall of the housing. The operation panel is used to input the dilution concentration and the weight of the drug in the ampoule vial, and to control the opening and closing of the injection drive mechanism, the syringe moving device, and the shaking mechanism.

[0015] Compared with the prior art, the utility model has achieved the following technical effects:

[0016] The powder injection dilution device provided by the utility model provides a first weight sensor on the base of the injection bottle. During the process of the injection drive mechanism injecting the solvent into the injection bottle, the weight information of the object carried on the base of the injection bottle is measured by the first weight sensor and transmitted to the controller. According to the weight information of the object obtained by the controller, the injection drive mechanism can be immediately closed, thereby improving the accuracy of the amount of solvent added and further improving the accuracy of the dilution concentration of the powder injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of a powder injection dilution device in one embodiment of the present invention;

[0019] Figure 2 This is a front view of the structure of a powder injection dilution device in one embodiment of the present utility model;

[0020] Figure 3 for Figure 2 A left view of the inner structure of the shell of the powder injection dilution device;

[0021] Figure 4 for Figure 2 A right view of the inner structure of the shell of the powder injection dilution device;

[0022] Figure 5 for Figure 2 A top view of the inner structure of the shell of the powder injection dilution device;

[0023] In the figure: 1-injection bottle base; 11-injection bottle; 12-first weight sensor; 13-first limiter; 2-injection drive mechanism; 21-clamping part; 22-acting part; 23-alignment hole; 3-controller; 31-operation panel; 4-shaking mechanism; 5-housing; 6-protective panel; 7-solvent bottle base; 71-solvent bottle; 72-second weight sensor; 73-second limiter; 8-syringe moving device; 81-cross slide; 811-longitudinal slide; 8111-longitudinal motor; 8112-longitudinal ball screw; 8113-longitudinal guide rail; 812-transverse slide; 8121-transverse motor; 8122-transverse ball screw; 8123-transverse guide rail. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The purpose of the utility model is to provide a powder injection dilution device to solve the problems existing in the prior art and to improve the accuracy of the dilution concentration of the powder injection.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0027] The utility model provides a powder injection dilution device, such as Figures 1 to 4 As shown, it includes: an ampoule bottle base 1 for supporting an ampoule bottle 11, a first weight sensor 12 is provided on the ampoule bottle base 1, and the first weight sensor 12 can measure the weight of the object carried on the ampoule bottle base; an injection drive mechanism 2, the injection drive mechanism 2 can drive the syringe to inject a dissolving agent into the ampoule bottle 11; and a controller 3, the controller 3 is signal-connected to the first weight sensor 12 and the injection drive mechanism 2, the first weight sensor 12 can transmit the measured weight information to the controller 3, and the controller 3 can control the opening and closing of the injection drive mechanism 2. During the process of the injection drive mechanism 2 injecting the dissolving agent into the ampoule bottle 11, by transmitting the weight information of the medicine in the ampoule bottle 11 measured by the first weight sensor 12 to the controller 3, the controller 3 can timely close the injection drive mechanism 2 when the increase in weight measured by the first weight sensor is equal to the weight of the dissolving agent to be injected, thereby improving the accuracy of the amount of dissolving agent added, and further improving the accuracy of the dilution concentration of the powder injection.

[0028] In some embodiments of the present invention, Figure 1 As shown, the first weight sensor 12 is a thin film weight sensor. When the film is subjected to external force or pressure, the film will undergo a slight deformation or strain. This deformation or strain will cause the resistance value on the film to change. By measuring this resistance change and based on the pre-calibrated correspondence between resistance and weight, the applied weight can be accurately measured with high sensitivity. In addition, the thin film weight sensor is small in size and light in weight. It is set on the base of the injection bottle to reduce the space occupied.

[0029] In some embodiments of the present invention, the first weight sensor 12 may also be an inductive weight sensor or a piezoelectric weight sensor, etc., so as to accurately measure the weight of the medicine in the ampoule bottle.

[0030] In some embodiments of the present invention, the powder injection dilution device also includes a shaking mechanism 4, which is connected to the controller 3 signal so that the controller 3 controls the opening and closing of the shaking mechanism 4. The shaking mechanism 4 is connected to the injection bottle base 1 and can drive the injection bottle base 1 to rotate back and forth around a vertical axis so that the powder in the powder injection bottle 11 is fully dissolved.

[0031] In some embodiments of the present invention, the shaking mechanism 4 can be a reciprocating drive motor, the output shaft of the reciprocating drive motor is connected to the base of the injection bottle, and the reciprocating drive motor can drive the base of the injection bottle to reciprocate around the vertical axis of the reciprocating drive motor output shaft.

[0032] In some embodiments of the present invention, the powder injection dilution device further includes a housing 5, such as Figures 1 to 4 The shown injection bottle base 1, shaking mechanism 4 and injection drive mechanism 2 are all arranged in the shell 5, and the shaking mechanism 4 and injection drive mechanism 2 are both fixedly connected to the inner wall of the shell 5. The fixed connection between the shaking mechanism 4 and the inner wall of the shell 5 means that the reciprocating drive motor is fixedly connected to the inner wall of the shell 5. An openable protective panel 6 is provided on the side wall of the shell 5. During the dilution process of the powder injection, the protective panel 6 is closed so that the powder injection dilution process is carried out in the closed shell 5 to avoid contamination by external bacteria during the dilution process. After the powder injection is diluted, the protective panel 6 is opened to take out the diluted medicine for use.

[0033] In some embodiments of the present invention, Figure 2 As shown, the powder injection dilution device also includes a solvent bottle base 7 arranged in the shell, and the solvent bottle base 7 is used to support the solvent bottle 71. The solvent bottle 71 can provide a solvent for the dilution of the powder injection. When in use, the injection drive mechanism 2 first drives the syringe to extract the solvent in the solvent bottle 71, and then the injection drive mechanism 2 drives the syringe to inject the solvent into the injection bottle 11; a second weight sensor 72 is provided on the solvent bottle base 7, and the second weight sensor 72 can measure the weight of the object 71 carried by the solvent bottle base, and the controller 3 and the second weight sensor 72 are connected. The sensor 72 is connected by signal, and the second weight sensor 72 can transmit the measured weight information to the controller 3. When in use, the controller can calculate the weight of the diluent to be extracted based on the input dilution concentration and the weight of the medicine in the injection bottle. By transmitting the weight information of the solvent in the solvent bottle measured by the second weight sensor to the controller, the controller controls the opening and closing of the injection drive mechanism, so that the syringe extracts the solvent from the solvent bottle or stops extracting the solvent, thereby improving the accuracy of the solvent extraction amount, and further improving the accuracy of the dilution concentration of the powder injection.

[0034] In some embodiments of the present invention, Figure 2As shown, the powder injection dilution device also includes a syringe moving device 8, which is connected to the controller 3 by signal, and the output component of the syringe moving device 8 is connected to the injection drive mechanism 2. The syringe moving device 8 can drive the syringe on the injection drive mechanism 2 to move to the solvent bottle 71 and the injection bottle 11, so that the syringe can extract the solvent in the solvent bottle 71 and inject the solvent into the injection bottle 11.

[0035] In some embodiments of the present invention, Figure 2 As shown, the injection drive mechanism 2 includes a clamping portion 21 and an action portion 22. The clamping portion 21 is used to clamp the syringe of the syringe, thereby driving the syringe to move to the solvent bottle 71 or the injection bottle 11. The action portion 22 is connected to the controller 3 signal. The action portion 22 is telescopically connected to the clamping portion 21. The action portion 22 can push or pull the piston rod of the syringe. When in use, the piston rod of the syringe is first pulled by the action portion 22 to extract the solvent 71 in the solvent bottle, and then the piston rod of the syringe is pushed by the action portion 22 to inject the solvent into the injection bottle 11. After the dilution is completed, the piston rod of the syringe is pulled by the action portion 22 to suck the diluted medicine into the syringe.

[0036] In some embodiments of the present invention, the clamping portion 21 has at least two clips, each clip is in point contact, line contact or surface contact with the outer wall of the syringe barrel, and the distance between the clips can be adjusted to accommodate more specifications and models of syringes.

[0037] In some embodiments of the present invention, the shape of each clip fits the outer wall of the syringe, and the surface where the clip fits the outer wall of the syringe can be an arcuate surface, so that two surface contacts are formed between the clip and the syringe to clamp the syringe. The surface where the clip fits the outer wall of the syringe can also be a plane, so that two line contacts are formed between the clip and the outer wall of the syringe barrel to clamp the syringe. One end of the two clips is hinged by a pin, and an elastic element is provided between the two clips near the pin, and both ends of the elastic element are respectively connected to each clip. When the clips move away from each other to clamp the syringe, the spring stretches to provide a pulling force for the clips to move closer to each other, thereby clamping the syringe. The degree of opening and closing between the two clips can be adjusted to adapt to syringes of different specifications and models.

[0038] In some embodiments of the present invention, Figures 3 and 4 As shown, the injection drive mechanism 2 also includes an alignment plate 23, on which an alignment hole is opened. The alignment plate 23 is arranged below the clamping portion 21. When in use, the syringe needle is passed through the alignment hole and clamped on the clamping portion 21. The alignment hole can ensure that the syringe needle is aligned with the opening of the bottle body to prevent the syringe clamping from being offset.

[0039] In some embodiments of the present invention, Figure 2 As shown, the syringe moving device 8 includes a cross slide 81, which can change the position of the injection drive mechanism 2 in the horizontal and vertical directions, so that the injection drive mechanism 2 drives the syringe to move in the horizontal or vertical direction to the solvent bottle 71 or the injection bottle 11, so that the syringe can extract the solvent in the solvent bottle 71 and inject the solvent into the injection bottle 11. The structure of the cross slide and the way the controller controls the cross slide to move to the position of the solvent bottle 71 or the injection bottle 11 are both existing technologies.

[0040] In some embodiments of the present invention, Figure 2 As shown, the cross slide 81 includes a longitudinal slide 811 and a transverse slide 812. The longitudinal slide 811 includes a longitudinal motor 8111, a longitudinal ball screw 8112, a longitudinal guide rail 8113 and a longitudinal end plate. The transverse slide 812 includes a slider, a transverse motor 8121, a transverse ball screw 8122, a transverse guide rail 8123 and a transverse end plate. The longitudinal guide rail 8113 is vertically fixedly connected to the inner wall of the shell. The longitudinal end plates are arranged at both ends of the longitudinal guide rail 8113. A longitudinal motor 8111 is fixedly arranged on one longitudinal end plate. The output shaft of the longitudinal motor 8111 is fixedly connected to one end of the longitudinal ball screw 8112. The other end of the longitudinal ball screw is rotatably connected to the other longitudinal end plate. The slider can slide vertically on the longitudinal guide rail 8113 and is threadedly connected to the longitudinal ball screw 8112. The longitudinal motor 8111 drives the longitudinal ball screw 8112 to rotate. The longitudinal ball screw 8112 drives the slider to make a linear motion in the vertical direction along the longitudinal guide rail 8113; the transverse guide rail 8123 is fixedly connected to the slider in the horizontal direction, and the transverse end plates are arranged at both ends of the transverse guide rail 8123. A transverse motor 8121 is fixedly arranged on one transverse end plate, and the output shaft of the transverse motor 8121 is fixedly connected to one end of the transverse ball screw 8122, and the other end of the transverse ball screw 8122 is rotatably connected to another transverse end plate. The injection drive mechanism 2 can slide on the transverse guide rail 8123 and be threadedly connected to the transverse ball screw 8122. The transverse motor 8121 drives the transverse ball screw 8122 to rotate, so that the transverse ball screw 8122 drives the injection drive mechanism 2 to make a linear motion in the horizontal direction along the transverse guide rail 8123, thereby changing the position of the injection drive mechanism 2 in the horizontal and vertical directions through the cross slide 81.

[0041] In some embodiments of the present invention, Figure 2As shown, a first limiter 13 is further provided on the ampoule bottle base 1. The first limiter 13 is used to limit the position of the ampoule bottle 11 and moves together with the ampoule bottle base 1 to prevent the ampoule bottle 11 from tipping over during the dilution process. A second limiter 73 is provided on the solvent bottle base 7. The second limiter 73 is used to limit the position of the solvent bottle 71 to prevent the solvent bottle 71 from tipping over and causing the solvent to flow out.

[0042] In some embodiments of the present invention, the first limit member 13 and the second limit member 73 each have at least two contact parts, and each contact part is in point contact, line contact or surface contact with the outer wall of the bottle body. The distance between each point contact, line contact or surface contact can be adjusted to accommodate more specifications and models of injection bottles and solvent bottles.

[0043] In some embodiments of the present invention, the first limit member 13 can be three limit blocks arranged on the base of the ampoule bottle, and the three limit blocks are evenly distributed around a vertical axis on the base of the ampoule bottle, and can slide on the base of the ampoule bottle in a direction perpendicular to the vertical axis to adjust the distance from each limit block to the center of the base of the ampoule bottle. The three limit blocks are in contact with the bottle body, and three point contacts are formed between the three limit blocks and the bottle body to prevent the bottle body from overturning. The second limit member 73 can also adopt the same structure.

[0044] In some embodiments of the present invention, the controller 3 has an operation panel 31, such as Figure 1 As shown, the operation panel 31 is arranged on the outer wall of the shell 5. The dilution concentration and the weight of the medicine in the injection bottle can be input through the operation panel 31, and the opening and closing of the injection drive mechanism 2, the syringe moving device 8 and the shaking mechanism 4 can be controlled, so that the dilution process of the powder injection is realized through the operation panel 31. During the process, the operator does not need to manually aspirate the dissolving agent and inject the dissolving agent into the injection bottle 11, nor does he need to manually shake the medicine in the injection bottle 11, which simplifies the operator's operation steps for diluting the powder injection and improves the accuracy of the dilution concentration of the powder injection.

[0045] During the dilution process of the powder injection, the operator places the powder injection bottle 11 and the solvent bottle 71 in the housing 5 and defines the position of the bottle body, and firmly clamps the syringe and closes the protective panel 6; inputs the dilution concentration and the weight of the powder in the powder injection bottle 11 on the operation panel 31, and sets the shaking time, and then starts the powder injection dilution device; the controller 3 calculates the weight of the diluent required to be extracted according to the dilution concentration and the weight of the powder, and controls the syringe moving device 8 to drive the syringe to move above the solvent bottle 71 and insert the needle into the solvent, the controller 3 controls the syringe driving mechanism 2 to pull the piston of the syringe to extract the solvent into the syringe, and the second weight sensor measures the weight of the solvent in the solvent bottle. When the amount of solvent reduced in the solvent bottle reaches the weight of the solvent required to be extracted, the syringe driving mechanism 2 is controlled to stop pulling the piston rod of the syringe; the controller 3 controls The syringe moving device 8 drives the syringe to move above the ampoule bottle 11, and causes the syringe driving mechanism 2 to advance the piston of the syringe to inject the solvent into the ampoule bottle 11. The first weight sensor measures the weight of the medicine in the ampoule bottle. When the increase in the amount of medicine in the ampoule bottle reaches the weight of the diluent that needs to be injected, the syringe driving mechanism 2 is controlled to stop advancing the piston rod of the syringe; the controller compares the amount of medicine reduced in the solvent bottle with the amount of medicine increased in the ampoule bottle to determine whether they are equal, thereby improving the accuracy of the amount of solvent added. If they are not equal, the controller will pause the operation of the device and give a prompt on the operation panel; the controller 3 controls the shaking mechanism 4 to start and shake the medicine in the ampoule bottle; after the shaking is completed, the controller controls the syringe driving mechanism 2 to pull the piston of the syringe to extract the diluted medicine into the syringe; the operator opens the protective panel 6, takes out the syringe and can use it.

[0046] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A powder injection dilution device, characterized by: include: An ampoule bottle base, used to support the ampoule bottle, wherein a first weight sensor is provided on the ampoule bottle base, and the first weight sensor can measure the weight of an object carried on the ampoule bottle base; An injection drive mechanism, wherein the injection drive mechanism is capable of driving a syringe to inject a dissolving agent into the ampoule bottle; as well as A controller is connected to the first weight sensor and the injection drive mechanism by signal, the first weight sensor can transmit the measured weight information to the controller, and the controller can control the opening and closing of the injection drive mechanism.

2. The powder injection dilution device according to claim 1, characterized in that: It also includes a shaking mechanism, which is connected to the controller signal, and the shaking mechanism is connected to the ampoule bottle base and can drive the ampoule bottle base to reciprocate around a vertical axis.

3. The powder injection dilution device according to claim 2, characterized in that: It also includes a shell, the injection bottle base, the shaking mechanism and the injection drive mechanism are all arranged in the shell, the shaking mechanism and the injection drive mechanism are both fixedly connected to the inner wall of the shell, and an openable protective panel is provided on the side wall of the shell.

4. The powder injection dilution device according to claim 3, characterized in that: It also includes a solvent bottle base arranged in the shell, the solvent bottle base is used to support the solvent bottle, a second weight sensor is arranged on the solvent bottle base, the second weight sensor can measure the weight of the object carried by the solvent bottle base, the controller is connected to the second weight sensor and the controller signal, and the second weight sensor can transmit the measured weight information to the controller.

5. The powder injection dilution device according to claim 4, characterized in that: It also includes a syringe moving device, which is connected to the controller signal, and the output of the syringe moving device is connected to the injection drive mechanism. The syringe moving device can drive the syringe on the injection drive mechanism to move to the solvent bottle and the injection bottle.

6. The powder injection dilution device according to claim 4, characterized in that: The injection drive mechanism includes a clamping part and an action part, the clamping part is used to clamp the syringe of the syringe, the action part is connected to the controller signal, the action part is movably connected to the clamping part, and the action part can move relative to the clamping part and push or pull the piston rod of the syringe.

7. The powder injection dilution device according to claim 5, characterized in that: The syringe moving device includes a cross slide, and the cross slide can change the position of the injection drive mechanism in the horizontal direction and the vertical direction.

8. The powder injection dilution device according to claim 4, characterized in that: The ampoule bottle base is further provided with a first limiter for limiting the horizontal movement of the ampoule bottle, and the dissolving agent bottle base is provided with a second limiter for limiting the horizontal movement of the dissolving agent bottle.

9. The powder injection dilution device according to claim 8, characterized in that: The first limiting member and the second limiting member each have at least two contact portions, each of the contact portions is in point contact, line contact or surface contact with the outer wall of the bottle body, and the distance between the contact portions is adjustable.

10. The powder injection dilution device according to claim 5, characterized in that: The controller has an operation panel, which is arranged on the outer wall of the shell. The dilution concentration and the weight of the medicine in the injection bottle can be input through the operation panel, and the opening and closing of the injection drive mechanism, the syringe moving device and the shaking mechanism can be controlled.

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