CN220125245U

CN220125245U - Infusion pump

Info

Publication number: CN220125245U
Application number: CN202321711566.6U
Authority: CN
Inventors: 马春杰
Original assignee: Medcaptain Medical Technology Co Ltd
Current assignee: Medcaptain Medical Technology Co Ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-12-05
Anticipated expiration: 2033-06-30

Abstract

The utility model provides an infusion pump, which relates to the technical field of medical appliances and comprises: the pump body comprises a shell, a main board positioned in the shell and a power module positioned in the shell, and the main board is connected with the power module; the main board is provided with a first attitude sensor and a micro-control unit, and the first attitude sensor is connected with the micro-control unit through the main board. Therefore, the posture change of the pump body is detected in real time through the first posture sensor and the micro-control unit, and the infusion pump is timely found to incline.

Description

Infusion pump

Technical Field

The utility model relates to the technical field of medical appliances, in particular to an infusion pump.

Background

Infusion pumps and syringe pumps are commonly used medical devices and are widely applied in clinic.

In practical application, infusion pumps and syringe pumps are used in complex environments such as operating rooms and ambulances.

Under such circumstances, if sudden and urgent matters (such as emergency stop of ambulance) occur, medical staff may not be installed in place when operating the infusion pump and the syringe pump, and further the infusion pump and the syringe pump are inclined, slide or even fall, so that the infusion safety is affected.

Disclosure of Invention

The utility model provides an infusion pump which is used for reducing safety risks caused by posture changes of the infusion pump.

In a first aspect, the present utility model provides an infusion pump comprising: the pump body comprises a shell, a main board positioned in the shell and a power module positioned in the shell, wherein the main board is connected with the power module, a first attitude sensor and a micro control unit are arranged on the main board, and the first attitude sensor is connected with the micro control unit through the main board; the output assembly is connected with the main board, so that connection between the output assembly and the micro control unit is established through the main board, and the output assembly is used for outputting prompt information of the change of the posture of the pump body.

In one possible implementation, the first attitude sensor includes a three-axis acceleration sensor whose three-axis direction coincides with the three-axis direction of the pump body, and the three axes include an X-axis, a Y-axis, and a Z-axis in a three-dimensional coordinate system.

In one possible implementation, the first attitude sensor further includes a tri-axis gyroscope, a tri-axis direction of the tri-axis gyroscope being coincident with a tri-axis direction of the pump body.

In one possible implementation, the pump body includes a cover and a base, the cover is detachably mounted on the base, and the first attitude sensor is located on a side of the main board facing the cover.

In one possible implementation, the pump body has an opening on a side thereof, and the infusion pump further includes: the pump door is positioned at the opening and used for closing the opening, a circuit board is arranged in the pump door, and a second posture sensor is arranged on the circuit board; the circuit board is connected with the main board.

In one possible implementation, the second attitude sensor includes a three-axis acceleration sensor, and the three-axis directions of the three-axis acceleration sensor in the second attitude sensor are identical to the three-axis directions of the pump door.

In one possible implementation, the first attitude sensor includes a three-axis acceleration sensor, and in the case where the pump door is fully opened, the three-axis direction of the three-axis acceleration sensor in the first attitude sensor coincides with the three-axis direction of the three-axis acceleration sensor in the second attitude sensor.

In one possible implementation, the output component includes: the display board is arranged on the pump door and is connected with the main board, so that the connection between the display board and the micro control unit is established through the main board, and the display board is used for displaying prompt information of the change of the posture of the pump body and/or prompt information of the opening of the pump door.

In one possible implementation manner, a storage unit is further arranged on the main board, a connection is established between the storage unit and the micro control unit through the main board, and the storage unit is used for recording an attitude change event of the pump body.

In one possible implementation, the output assembly includes a sound playing device disposed on the housing, the sound playing device being connected to the motherboard to establish a connection between the sound playing device and the micro control unit through the motherboard; the sound playing device is used for playing prompt information of the posture change of the pump body.

The utility model provides an infusion pump which comprises a pump body and an output assembly. The pump body comprises a shell, a main board positioned in the shell and a power module positioned in the shell, wherein the main board is connected with the power module, so that the power module supplies power to components on the main board. Be provided with first attitude sensor and little control unit on the mainboard, first attitude sensor passes through the mainboard with little control unit and establishes the connection, and first attitude sensor can real-time detection the gesture data of the pump body, and little control unit can judge whether the pump body takes place the gesture change based on the gesture data of the pump body. The output assembly is connected with the main board so as to establish connection between the output assembly and the micro-control unit through the main board. Under the condition that the pump body changes in posture, the micro-control unit can control the output assembly to output prompt information of the pump body changing in posture. Therefore, the posture of the infusion pump is accurately detected in real time based on the posture sensor, a user is timely reminded when the posture of the infusion pump changes, and the safety risk caused by the posture change of the infusion pump is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a schematic structural diagram of an infusion pump according to an embodiment of the present utility model;

fig. 2 is a diagram showing an example of the structure of an infusion pump according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of three axial directions of a sensor according to an embodiment of the present utility model;

fig. 4 is a schematic diagram of a second structure of an infusion pump according to an embodiment of the present utility model.

Specific embodiments of the present utility model have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of apparatus and methods consistent with aspects of the utility model as detailed in the accompanying claims.

Infusion pumps may tilt, slide or even fall, affecting infusion safety.

In order to solve the problems, the utility model provides the infusion pump, whether the infusion pump is in a posture change is detected through the posture sensor and the microcontroller which are arranged on the main board, and the prompt information is output through the output component under the condition that the infusion pump is in the posture change, so that the safety risk caused by the posture change of the infusion pump is reduced, and the safety of the infusion process is improved. The infusion pump is a generic term for infusion pumps and syringe pumps, and the infusion pump in the present utility model may be an infusion pump and/or a syringe pump.

The following describes the technical scheme of the present utility model and how the technical scheme of the present utility model solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present utility model will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an infusion pump according to an embodiment of the present utility model. As shown in fig. 1, the infusion pump includes a pump body 10, the pump body 10 including a housing, a main board 11 located inside the housing, and a power module 12 located inside the housing, the main board 11 being connected to the power module 12; a first attitude sensor 13 and a micro control unit 14 are provided on the main board 11, and a connection is established between the first attitude sensor 13 and the micro control unit 14 through the main board 11. The infusion pump further comprises an output assembly 20, wherein the output assembly 20 is connected with the main board 11, so that connection between the output assembly 20 and the micro-control unit 14 is established through the main board 11, and the output assembly 20 is used for outputting prompt information of posture change of the pump body 10.

Wherein the number of first posture sensors 13 may be one or more.

In this embodiment, the motherboard 11 is connected to the power module 12, so that the power module 12 supplies power to the motherboard 11. In the case that the main board 11 is powered on, the micro control unit 14 may collect the posture data of the pump body 10 through the first posture sensor 13, and determine whether the posture of the pump body 10 changes according to the posture data of the pump body 10. If the micro-control unit 14 determines that the pump body 10 is changed in posture, the output assembly 20 can be controlled to output a prompt message of the change in posture of the pump body 10.

Fig. 2 is a diagram showing an example of the structure of an infusion pump according to an embodiment of the present utility model. As shown in fig. 2, the infusion pump may be a syringe pump 1 and an infusion pump 2, where the syringe pump 1 and the infusion pump 2 each include a pump body, and the infusion pump 2 includes a pump body 21, for example, the infusion pump 2. The pump body comprises a shell, a main board (not shown in fig. 2) and a power module (not shown in fig. 2) are arranged in the shell, the main board is connected with the power module, and a first attitude sensor (not shown in fig. 2) and a micro-control unit (not shown in fig. 2) can be arranged on the main board so as to realize attitude detection and attitude change prompt of the injection pump 1 and the infusion pump 2.

As shown in fig. 2, the pump body may correspond to a three-dimensional coordinate system, and there are three coordinate axes: an X axis, a Y axis and a Z axis. In one mode, the X axis, the Y axis and the Z axis corresponding to the pump body are consistent with the X axis, the Y axis and the Z axis in the world coordinate system; in yet another manner, the X-axis, Y-axis and Z-axis may be perpendicular to different sides of the pump body, respectively, and for example, in FIG. 2, the X-axis is perpendicular to the left and right sides of the pump body, the Y-axis is perpendicular to the front and rear sides of the pump body, and the Z-axis is perpendicular to the upper and lower sides of the pump body, and if the sides of the pump body are sloped, compensation angles may be designed for the X-axis, Y-axis and Z-axis depending on the degree of slope of the sides.

Based on the coordinate axes, optionally, in fig. 1, the first posture sensor 13 is a three-axis posture sensor, and is used for measuring posture data of the pump body 10 in three-axis directions, and the micro control unit 14 may determine, according to the posture data of the pump body 10 in three-axis directions, posture changes of the pump body 10 in three-axis directions, so as to more accurately detect the posture changes of the pump body 10, and improve infusion safety.

Further, the triaxial direction of the first attitude sensor 13 is consistent with the triaxial direction of the pump body 10, so that an original included angle between the triaxial direction of the first attitude sensor 13 and the triaxial direction of the pump body 10 needs to be considered when calculating the attitude change in the triaxial direction, and the attitude detection efficiency and accuracy are improved.

Fig. 3 is a schematic diagram of three axial directions of a sensor according to an embodiment of the present utility model. As shown in fig. 3, three coordinate axes of the sensor may be divided into an X-axis, a Y-axis, and a Z-axis, wherein the X-axis, the Y-axis, and the Z-axis are perpendicular to different sides of the sensor, respectively. The X-axis direction may be divided into-X direction and +X direction, the Y-axis direction may be divided into-Y direction and +Y direction, and the Z-axis direction may be divided into-Z direction and +Z direction.

The three-axis direction of the first attitude sensor 13 coincides with the three-axis direction of the pump body 10, which means: the X-axis direction of the first attitude sensor 13 coincides with the X-axis direction of the pump body 10 (may include both-X direction and +x direction coincidence), the Y-axis direction of the first attitude sensor 13 coincides with the Y-axis direction of the pump body 10 (may include both-Y direction and +y direction coincidence), and the Z-axis direction of the first attitude sensor 13 coincides with the Z-axis direction of the pump body 10 (may include both-Z direction and +z direction coincidence).

Alternatively, the pump body 10 may include a cover and a base, the cover being detachably mounted on the base, and the first posture sensor 13 may be located on a side of the main plate 11 facing the cover, so as to facilitate maintenance and repair of the first posture sensor 13. Taking the infusion pump 2 in fig. 2 as an example, the pump body 21 of the infusion pump 2 includes a cover 211 and a base 212, and a main board (not shown in fig. 2) may be disposed below the cover 211, and a first posture sensor (not shown in fig. 2) is disposed on the main board.

Fig. 4 is a schematic diagram of a second structure of an infusion pump according to an embodiment of the present utility model. As shown in fig. 4, the first attitude sensor 13 may include a triaxial acceleration sensor 131 to collect accelerations of the pump body 10 in three coordinate axes (X-axis, Y-axis and Z-axis) by the triaxial acceleration sensor 131, and to improve detection accuracy of the attitude change of the pump body 10 based on the accelerations of the pump body 10 in the three coordinate axes.

Further, the triaxial direction of the triaxial acceleration sensor 131 is consistent with the triaxial direction of the pump body 10, so that the original included angle between the triaxial direction of the triaxial acceleration sensor 131 and the triaxial direction of the pump body 10 is avoided when the posture change in the triaxial direction is calculated, and the posture detection efficiency and accuracy are improved.

After the infusion pump is turned on, the micro-control unit 14 (not shown in fig. 4) may control the tri-axial acceleration sensor 131 for real-time detection. If the infusion pump is positioned on a horizontal bearing surface (such as a horizontal table top) and the Z axis of the infusion pump is upward, the three-axis acceleration sensor 131 can output accelerations of the X axis, the Y axis and the Z axis of 0g, 0g and 1g respectively, wherein g is a gravitational acceleration unit; if the infusion pump is positioned on the horizontal bearing surface and the X axis of the infusion pump faces upwards, the three-axis acceleration sensor 131 can output accelerations of the X axis, the Y axis and the Z axis of 1g, 0g and 0g respectively; if the infusion pump is on a horizontal bearing surface and the Y-axis of the infusion pump is facing upwards, the three-axis acceleration sensor 131 can output accelerations of 0g, 1g, and 0g for the X-axis, the Y-axis, and the Z-axis, respectively, where g is the unit of gravitational acceleration. When the infusion pump moves or tilts, the acceleration in the X, Y, and Z axes changes. Thus, the micro-control unit 14 can determine whether the infusion pump is experiencing a posture change based on the accelerations of the X-axis, Y-axis, and Z-axis.

Based on this, a posture detection method can be proposed. The gesture detection method may include the steps of: step 1: the micro control unit 14 may acquire the triaxial acceleration measured by the triaxial acceleration sensor 131, including the acceleration of the X axis, the acceleration of the Y axis, and the acceleration of the Z axis; step 2, the micro control unit 14 calculates the triaxial acceleration to obtain a calculated value; step 3: judging whether the calculated value is in a preset range or not; step 4, if the calculated value is within the preset range, the micro control unit 14 determines that the infusion pump is not moved; step 5, in the case that the infusion pump does not move, the micro control unit 14 can calculate the tri-axial included angle based on the tri-axial acceleration; in step 6, the micro control unit 14 determines whether the pump body 10 is tilted based on the triaxial angle. In this way, tilt detection of the infusion pump is achieved.

Optionally, after step 3, the gesture detection method further includes: step 7, judging whether the calculated value is larger than a threshold value; and 8, if the calculated value is greater than the threshold value, determining that the infusion pump falls or collides. Thus, drop and collision detection of the infusion pump is achieved. In the process of judging falling and collision, considering that the Z-axis acceleration of the infusion pump is usually 1g when the infusion pump is at rest, the acceleration and the gravity acceleration are overlapped in the motion process, but in the falling or collision process, the acceleration can far exceed the gravity acceleration, so that the gravity acceleration can be ignored when the threshold value is set.

Alternatively, the micro-control unit 14 calculates the triaxial acceleration to obtain a calculated value, which may include: the micro control unit 14 performs a sum of squares calculation on the acceleration in the X axis, the acceleration in the Y axis, and the acceleration in the Z axis, to obtain a sum of squares of the acceleration in the three axes. Therefore, the three-axis acceleration is fused together in a square sum mode, and when any one axis acceleration changes, the square sum can change greatly, so that the accuracy of detecting the posture change of the infusion pump is improved.

Further, the calculation formula of the sum of squares of the triaxial acceleration can be expressed as: a=x ² +y ² +z ² . Where X is the acceleration in the X axis, Y is the acceleration in the Y axis, and z is the acceleration in the z axis. Since the value of a should be 1 in the case where the infusion pump is normally placed, if the value of a is in the range of 1-b to 1+b, it can be considered that the infusion pump is not moving, where b is a preset tolerance value.

Alternatively, the micro-control unit 14 may calculate the tri-axis included angle based on the tri-axis acceleration, and may include: calculating an included angle between the X axis and the Z axis according to the acceleration of the X axis and the acceleration of the Z axis; calculating an included angle between the X axis and the Y axis according to the acceleration of the X axis and the acceleration of the Y axis; and calculating the included angle between the Y axis and the Z axis according to the acceleration of the Y axis and the acceleration of the Z axis. Therefore, the accuracy of the included angle is improved through calculation of the included angles in pairs.

Further, the calculation formula of the included angle between the X axis and the Z axis can be expressed as: TAN (θ) _XZ ) =x/z; the calculation formula of the included angle between the X axis and the Y axis can be expressed as follows: TAN (θ) _XY ) =x/y; the calculation formula of the included angle between the Y axis and the Z axis can be expressed as follows: TAN (θ) _YZ ) =y/z. Wherein θ _XZ Represents the included angle theta between the X axis and the Z axis _XY Represents the included angle theta between the X axis and the Y axis _YZ Representing the angle between the Y axis and the Z axis.

Optionally, the micro-control unit 14 determines whether the pump body 10 is inclined based on the triaxial angle, and may include: if any one of the included angle between the X axis and the Z axis, the included angle between the X axis and the Y axis, and the included angle between the Y axis and the Z axis is larger than the included angle threshold, the deflection angle of the coordinate axis is larger, and the pump body 10 is determined to be inclined. Therefore, the deflection angle of the coordinate axes is estimated by utilizing the characteristic that the deflection angle of the coordinate axes is larger when the inclination degree of the pump body is higher, and the accuracy of the inclination detection of the pump body is improved.

Optionally, as shown in fig. 4, the first posture sensor 13 may further include a tri-axis gyroscope 132 to measure a rotation angle around at least one axis when the posture of the pump body 10 is changed by the tri-axis gyroscope 132. For the triaxial acceleration sensor 131, the measured data are real-time and are not influenced by time accumulation, but may be influenced by gravitational acceleration, for the triaxial gyroscope 132, the measured data are not influenced by gravitational acceleration, but the rotational angle of the pump body 10 is obtained by accumulating the data in a period of time in an integral mode, and the accuracy of the posture detection of the pump body 10 and the infusion safety can be improved by matching the triaxial acceleration sensor 131 with the triaxial gyroscope 132.

Further, the triaxial directions of the triaxial gyroscope 132 are consistent with the triaxial directions of the pump body 10, so that the original included angles between the triaxial directions of the triaxial gyroscope 132 and the triaxial directions of the pump body 10 are avoided from being considered when the rotation angles in the triaxial directions are calculated, and the gesture detection efficiency and accuracy are improved.

Alternatively, in the first attitude sensor 13, the triaxial acceleration sensor 131 and the triaxial gyroscope 132 are located on the same side of the main board 11 to ensure that the triaxial directions of the triaxial acceleration sensor 131 coincide with the triaxial directions of the triaxial gyroscope 132.

Optionally, the pump body 10 includes a cover and a base, the cover is detachably mounted on the base, and the tri-axial acceleration sensor 131 and the tri-axial gyroscope 132 may be disposed on a side of the main board 11 facing the cover, so as to facilitate inspection and maintenance of the tri-axial acceleration sensor 131 and the tri-axial gyroscope 132.

Optionally, the first posture sensor 11 further includes a vibration sensor (not shown in the drawing) for measuring vibration data of the pump body 10. In the gesture detection process, the micro control unit 14 can acquire vibration data of the pump body 10 through the vibration sensor, and combine the vibration data and gesture data measured by the triaxial acceleration sensor 131 to determine whether the pump body 10 has gesture change, or combine the vibration data, gesture data measured by the triaxial acceleration sensor 131 and rotation data measured by the triaxial gyroscope 132 to determine whether the pump body 10 has gesture change, so as to improve the detection accuracy of the gesture change.

Optionally, the pump body 10 has an opening on a side, as shown in fig. 4, and the infusion pump further includes: the pump door 30 is located at the opening, the pump door 30 is used for closing the opening, taking the infusion pump 2 in fig. 2 as an example, the infusion pump 2 comprises a corresponding pump door 22, and when the pump door 22 of the infusion pump 2 is closed, the side opening can be closed; a circuit board is provided inside the pump door 30 of the infusion pump, and a second attitude sensor 40 is provided on the circuit board. Wherein the circuit board is connected to the main board 11 (the connection relationship is not shown in the drawing) to transmit the detection data of the second attitude sensor 40 to the micro control unit 14 (not shown in fig. 4) through the connection of the circuit board in the pump door 30 to the main board 11.

In this alternative manner, the first attitude sensor 13 on the main board 11 can detect the attitude data of the pump body 10, and the second attitude sensor 40 on the circuit board in the pump door 30 can detect the attitude data of the pump door 30, and the micro control unit 14 can combine the attitude data of the pump body 10 and the attitude data of the pump door 30 to determine whether the attitude change of the pump body 10 causes the attitude change of the pump door 30. If the micro control unit 14 determines that the pump door 30 is changed from the open state to the closed state when the posture of the pump body 10 is changed, or determines that the pump door is changed from the closed state to the open state when the posture of the pump body 10 is changed, in combination with the posture data of the pump body 10 and the posture data of the pump door 30, the output assembly 20 (not shown in fig. 4) may be controlled to output the prompt message. Therefore, under the condition that the infusion pump is changed in posture to cause the pump door to be opened (for example, the pump door is opened when the infusion pump is inclined), a user can be timely reminded, and the infusion safety is improved.

Alternatively, the second attitude sensor 40 is a three-axis attitude sensor, so that accuracy in detecting changes in the attitude of the pump door can be improved by the attitude data of the pump door in the three-axis directions.

Further, the triaxial direction of the second attitude sensor 40 is consistent with the triaxial direction of the pump door 30, so that the second attitude sensor 40 can generate the same attitude change along with the pump door 30, the triaxial direction change of the second attitude sensor 40 is consistent with the triaxial direction change of the pump door 30, and the attitude data of the pump door 30 can be accurately detected by the second attitude sensor 40.

Optionally, the second posture sensor 40 includes a three-axis acceleration sensor, so as to collect acceleration of the pump door 30 in three coordinate axes (X-axis, Y-axis and Z-axis) through the three-axis acceleration sensor, and improve accuracy of detecting posture change of the pump door 30 based on the acceleration of the pump door 30 in the three coordinate axes.

Further, in the case where the first posture sensor 13 includes the triaxial acceleration sensor 131, since the triaxial direction of the triaxial acceleration sensor in the second posture sensor 40 is changed as the pump door 30 is opened or closed, the relative position of the triaxial direction to the triaxial direction of the triaxial acceleration sensor 131 in the first posture sensor 13 is also changed. Therefore, the micro control unit 14 can judge the posture of the pump door 30 by comparing the triaxial directions of the triaxial acceleration sensor 131 in the first posture sensor 13 with the triaxial directions of the triaxial acceleration sensor in the second posture sensor 40, and even can judge the opening angle of the pump door 30, improving the accuracy of the opening and closing detection of the pump door 30.

Further, in the case where the first posture sensor 13 includes the triaxial acceleration sensor 131, in the case where the pump door 30 is fully opened, the triaxial directions of the triaxial acceleration sensor 131 in the first posture sensor 13 coincide with the triaxial directions of the triaxial acceleration sensor in the second posture sensor 40. On one hand, the original included angles between the three-axis directions of the three-axis acceleration sensor 131 in the first attitude sensor 13 and the three-axis directions of the three-axis acceleration sensor 40 in the second attitude sensor 40 are avoided from being considered when the attitude change of the pump door 30 is calculated, so that the attitude detection efficiency and accuracy are improved; on the other hand, it may be designed that the pump door 30 is parallel to the pump body 10 when the pump door 30 is fully opened, and the circuit board in the pump door 30 is parallel to the main board 11 in the pump body 10, so that the triaxial acceleration sensor in the second attitude sensor 40 can be disposed on the circuit board in a manner parallel to the circuit board, and the triaxial acceleration sensor 131 in the first attitude sensor 13 can also be disposed on the main board 11 in a manner parallel to the main board 11, so that the position fixing manner of the sensor on the circuit board and the main board is more consistent.

Optionally, the output assembly 20 includes a display panel (not shown in fig. 4, taking the infusion pump 2 in fig. 2 as an example, the display panel may be the display screen 23 of the infusion pump 2) disposed on the pump door 30, where the display panel is connected to the main board 11, so as to establish connection between the display panel and the micro control unit 14 through the main board 11, and the display panel is used to display a prompt message of the change of the posture of the pump body 10 and/or a prompt message of the opening of the pump door 30. Therefore, when the pump body 10 is changed in posture and/or the pump door 30 is opened, the prompt information is displayed to prompt the user in time, so that the user takes measures in time when the infusion pump is toppled over or the pump door 30 is opened, and the infusion safety is improved.

Optionally, the output assembly 20 includes a sound playing device (not shown) disposed on the housing, and the sound playing device is connected to the main board 11, so as to establish a connection between the sound playing device and the micro control unit 14 through the main board 11; the sound playing device is used for playing prompt information of the posture change of the pump body 10. Therefore, under the condition that the posture of the pump body 10 is changed, the micro-control unit 14 can control the sound playing device to play the prompt information of the posture change of the pump body 10, so that a user is timely reminded, and the infusion safety is improved.

Further, the sound playing device can also be used for playing the prompt information of the pump door 30 to be opened, and reminding the user of the pump door to be opened in time, so that the infusion safety is improved.

Optionally, based on any of the foregoing embodiments, an integrated circuit bus (Inter-Integrated Circuit, IIC) (not shown) is also provided on the motherboard 11. The first attitude sensor 13 and the micro control unit 14 are connected through an integrated circuit bus. The second attitude sensor 40 and the micro control unit 14 may also be connected by an integrated circuit bus. Thus, the stability and reliability of the data transmission between the first attitude sensor 13 and the micro control unit 14 are ensured, the stability of the data transmission between the second attitude sensor 40 and the micro control unit 14 is ensured,

optionally, based on any of the foregoing embodiments, a storage unit (not shown in the drawings) is further provided on the main board 11, and a connection is established between the storage unit and the micro-control unit 14 through the main board 11, where the storage unit is used to record an attitude change event of the pump body 10. Therefore, the user can check the posture change event of the pump body 10 conveniently, and particularly maintenance personnel can maintain the infusion pump based on the posture change event of the pump body 10 conveniently, so that the maintenance efficiency and accuracy of the infusion pump are improved, and the infusion safety is improved.

Further, the storage unit may be further configured to record an opening event of the pump door 30, so that a user can check the opening event of the pump door 30, determine whether the pump door 30 is abnormal, and timely feed back the abnormal situation of the pump door 30.

Further, the memory cell may comprise a charged erasable programmable read-only memory (electrically erasable programmable read only memory, EEPROM). After the infusion pump is powered down, the data stored in the EEPROM cannot be lost, so that the data security of an attitude change event and a pump door opening event is ensured; and the data stored in the EEPROM can be erased, and the attitude change event and the pump door opening event which are long in the past can be erased, so that the storage space is saved.

Further, the storage unit can record the time of event occurrence when recording the event, so that the user can grasp more information about the posture change of the pump body 10 and the opening of the pump door.

Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the disclosed embodiments. This utility model is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.

It is to be understood that the utility model is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims

1. An infusion pump, comprising:

the pump body comprises a shell, a main board positioned in the shell and a power module positioned in the shell, wherein the main board is connected with the power module, a first attitude sensor and a micro control unit are arranged on the main board, and the first attitude sensor is connected with the micro control unit through the main board;

the output assembly is connected with the main board, so that connection between the output assembly and the micro control unit is established through the main board, and the output assembly is used for outputting prompt information of the change of the posture of the pump body.

2. The infusion pump of claim 1, wherein the first attitude sensor comprises a tri-axial acceleration sensor having tri-axial directions coincident with tri-axial directions of the pump body, the tri-axes comprising an X-axis, a Y-axis, and a Z-axis in a three-dimensional coordinate system.

3. The infusion pump of claim 2, wherein the first attitude sensor further comprises a tri-axis gyroscope having tri-axis directions coincident with tri-axis directions of the pump body.

4. An infusion pump according to any one of claims 1 to 3, wherein the pump body comprises a cover and a base, the cover being detachably mounted on the base, the first attitude sensor being located on a side of the main plate facing the cover.

5. An infusion pump according to any one of claims 1 to 3, wherein the pump body has an opening laterally, the infusion pump further comprising:

the pump door is positioned at the opening and used for closing the opening, a circuit board is arranged in the pump door, and a second posture sensor is arranged on the circuit board;

the circuit board is connected with the main board.

6. The infusion pump of claim 5, wherein the second attitude sensor comprises a tri-axial acceleration sensor, the tri-axial direction of the tri-axial acceleration sensor in the second attitude sensor being coincident with the tri-axial direction of the pump gate.

7. The infusion pump of claim 6, wherein the first attitude sensor includes a tri-axial acceleration sensor, and wherein a tri-axial direction of the tri-axial acceleration sensor in the first attitude sensor coincides with a tri-axial direction of the tri-axial acceleration sensor in the second attitude sensor with the pump door fully open.

8. The infusion pump of claim 5, wherein the output assembly comprises:

the display board is arranged on the pump door and is connected with the main board, so that the connection between the display board and the micro control unit is established through the main board, and the display board is used for displaying prompt information of the change of the posture of the pump body and/or prompt information of the opening of the pump door.

9. An infusion pump according to any one of claims 1 to 3, wherein a storage unit is further provided on the main board, a connection being established between the storage unit and the micro-control unit through the main board, the storage unit being for recording an attitude change event of the pump body.

10. An infusion pump according to any one of claims 1 to 3, wherein the output assembly comprises sound playing means provided on the housing, the sound playing means being connected to the main board to establish a connection between the sound playing means and the micro control unit through the main board;

the sound playing device is used for playing prompt information of the posture change of the pump body.