Micropump

Abstract

The utility model relates to the technical field of micro-injection pumps, and discloses a micro-pump, which comprises a micro-injection pump machine, a controller used for controlling injection amount and speed and a display used for interactive display are integrated on the micro-injection pump machine, the micro injection pump machine is further provided with a push rod which is driven by a motor to be propelled and is used for injecting an injector fixed on the micro injection pump machine, and the multi-specification clamp holder is fixed in the middle of the micro injection pump machine. A multi-specification clamping device is arranged above the device, a clamping rod at a proper position is independently pulled open to form an enough opening for the injector to be rapidly placed in from the placing opening, and then the injector is adjusted to the middle position of the annular frame under the equal potential energy of three springs. And the tail end of the injector can be better aligned with the center of the upper end of the push rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to micro -injection pump technical field especially a micro -pump. BACKGROUND

[0002] Micro -injection pump is used as a common clinical treatment, has been widely used in medical practice in each field. The working principle of micro -injection pump is to take stepper motor as power source, and the system sends control pulse and makes stepper motor rotate, and stepper motor drives the rotation of the screw rod, and the screw rod drives the linear motion of the push head on the transmission nut, thereby the linear motion of the syringe piston is pushed, and the liquid in the syringe flows in one direction, and the push speed of the liquid can be adjusted by setting the rotation of the screw rod, thereby the dose of the given drug is adjusted. At the same time, the input in the rate adjustment range, injection accuracy and reliability can be guaranteed through the speed feedback system.

[0003] The Chinese invention patent with the authorized announcement number CN104815369B discloses an ICU department micro -injection pump device, which comprises a device main body, a stepper motor device and a liquid flow control box, an alarm lamp is arranged on the front side of the device main body, a pipeline obstruction prompting button, an injection stop button and a dose prompting key are arranged on the right side of the alarm lamp, an information display screen is arranged on the right side of the dose prompting key, a start button is arranged between the information display screen and the dose prompting key, a dose selection key is arranged on the right side of the start button, a power cord port is arranged on the device main body, the power cord port is connected with a power cord, the power cord is connected with a plug, an injection pressure support frame is arranged on the lower side of the device main body, the injection pressure support frame is connected with an injection pressure device, and an injection pressure box is arranged in the injection pressure device. The injection pump of the scheme is convenient to use.

[0004] The national standard only stipulates the capacity of the syringe, and does not limit the diameter length ratio of the syringe. The syringe clamping groove of the micro -injection pump on the market is fixed, and a single fixed pressing sheet is clamped on the syringe tube and the tail end of the syringe piston rod, so that the syringe is fixed. The concave degree of the fixed pressing sheet clamp is fixed, so that the matching degree of the syringes with different diameters and the micro -injection pump fixed pressing sheet is poor, and the fastening property is difficult to guarantee. In the pushing process, the syringe tube is prone to sliding. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problems in the prior art.

[0006] The utility model solves the technical problems by adopting the following technical scheme:

[0007] The utility model discloses a micro pump, including a micro injection pump machine, the controller for controlling injection amount and speed and the display for interactive display are integrally arranged on the micro injection pump machine, the micro injection pump machine is also provided with a push rod with motor drive propulsion for the injection of syringe fixed on the micro injection pump machine, and the micro injection pump machine is fixed in the middle part, and the multi-specification holder is provided with at least three clamping points for clamping the syringe from the side and the limiting block that the lateral convex part of syringe outer tube is opposite and restricts its axial movement.

[0008] Preferably, the multi-specification holder includes a ring-shaped frame fixed on the micro injection pump machine, and the ring-shaped frame is provided with a placing opening as an opening for placing the syringe.

[0009] Preferably, linear sliding sleeves are fixed on the ring-shaped frame in a ring-shaped and spaced manner, and clamping rods are slidably inserted into the linear sliding sleeves.

[0010] Preferably, a limiting tail block is fixed on the outer end of the clamping rod for limiting the stroke of the clamping rod.

[0011] Preferably, a clamping plate is fixed on the lower end of the clamping rod, a spring is sleeved on the clamping rod, the clamping rod and the clamping plate are pushed to the center of the ring-shaped frame under the action of the spring to realize active clamping, and a protruding tail plate is arranged on the end of the clamping plate close to the push rod to abut against the protruding part of the tail end of the syringe outer tube to restrict the axial movement of the syringe outer tube.

[0012] Preferably, a non-slip silica gel sheet is glued and fixed on the wall surface abutting against the syringe.

[0013] The utility model discloses a micro pump, including a micro injection pump machine, the controller for controlling injection amount and speed and the display for interactive display are integrally arranged on the micro injection pump machine, the micro injection pump machine is also provided with a push rod with motor drive propulsion for the injection of syringe fixed on the micro injection pump machine, and the micro injection pump machine is fixed in the middle part, and the multi-specification holder is provided with at least three clamping points for clamping the syringe from the side and the limiting block that the lateral convex part of syringe outer tube is opposite and restricts its axial movement. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model is further illustrated in connection with the drawings and examples.

[0015] Fig. 1 It is the structure schematic diagram of the utility model;

[0016] Fig. 2 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention. The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings:

[0018] like Figs. 1-2 As shown, the micropump of this utility model includes a micro injection pump 10. The micro injection pump 10 integrates a controller 12 for controlling the injection volume and speed and a display 11 for interactive display. The micro injection pump 10 is also provided with a push rod 14 driven by a motor for injecting a syringe fixed on the micro injection pump 10. It also includes a multi-specification clamp 13 fixed in the middle of the micro injection pump 10. The multi-specification clamp 13 is provided with at least three clamping points for side clamping of the syringe and a limiting block that abuts against the transverse protrusion of the syringe barrel to limit its axial movement.

[0019] Preferably, the multi-specification holder 13 includes an annular frame 15 fixed to the micro-injection pump 10, and the annular frame 15 is provided with a placement opening 16 as an opening for inserting a syringe.

[0020] Preferably, a linear sliding sleeve 17 is fixedly provided at an annular interval on the annular frame 15, and a clamping rod 18 is slidably inserted into the linear sliding sleeve 17.

[0021] Preferably, a limiting tail block 19 is fixedly provided at the outer end of the clamping rod 18 to limit the stroke of the clamping rod 18.

[0022] Preferably, a clamping plate 20 is fixedly provided at the lower end of the clamping rod 18, and a spring 22 is also fitted on the clamping rod 18. Under the action of the spring 22, the clamping rod 18 and the clamping plate 20 are pushed to the center of the annular frame 15 to achieve active clamping. Furthermore, a protruding tail push plate 21 is provided at one end of the clamping plate 20 near the push rod 14 to abut against the protruding part of the tail of the syringe outer barrel, thereby restricting the axial movement of the syringe outer barrel.

[0023] Preferably, an anti-slip silicone sheet (not shown in the figure) is glued and fixed on the wall surface of the clamp 20 where it abuts against the syringe.

[0024] In the specific implementation, different specifications of injectors are used to extract liquid medicine, one of the clamping rods 18 close to the placing opening 16 is pulled away, then the injector is placed in the annular frame 15, the injector is clamped in the middle position by the action of the spring 22, then the push rod 14 is moved by the controller 12 to abut against the tail end of the injector, and the injector is exhausted of air, and then the injection can be performed.

[0025] It should be emphasized that the embodiments of the utility model are illustrative rather than restrictive, and thus the utility model is not limited to the embodiments described in the specific implementation, and any other embodiments derived by those skilled in the art according to the technical scheme of the utility model also belong to the protection scope of the utility model.

Claims

1. A micropump, comprising a micro-injection pump (10), wherein a controller (12) for controlling injection volume and speed and a display (11) for interactive display are integrated on the micro-injection pump (10), and the micro-injection pump (10) is further provided with a push rod (14) driven by a motor for injecting a syringe fixed on the micro-injection pump (10), characterized in that: Also included is a multi-specification holder (13) fixed in the middle of the micro-injection pump machine (10), which is provided with at least three clamping points for clamping the syringe from the side and a limiting block for limiting the axial movement of the lateral protruding part of the syringe barrel.

2. A micropump according to claim 1, characterized in that: The multi-specification holder (13) includes a ring-shaped holder (15) fixed on the micro-injection pump machine (10), which is provided with a placing opening (16) as the opening for placing the syringe.

3. A micropump according to claim 2, characterized in that: A linear sliding sleeve (17) is fixed on the ring-shaped holder (15) in a ring-shaped and spaced manner, and a clamping rod (18) is slidingly inserted in the linear sliding sleeve (17).

4. A micropump according to claim 3, characterized in that: A limiting tail block (19) is fixed on the outer end of the clamping rod (18) for limiting the stroke of the clamping rod (18).

5. A micropump according to claim 4, characterized in that: A clamping plate (20) is fixed on the lower end of the clamping rod (18), and a spring (22) is further sleeved on the clamping rod (18), which is driven by the spring (22) to push the clamping rod (18) and the clamping plate (20) to the center of the ring-shaped holder (15) to achieve active clamping, and a protruding tail push plate (21) is arranged on the end of the clamping plate (20) close to the push rod (14) to abut against the protruding part of the tail of the syringe barrel to limit the axial movement of the syringe barrel.

6. A micropump according to claim 5, characterized in that: An anti-slip silica gel sheet is glued and fixed on the wall surface of the clamping plate (20) abutting against the syringe.

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