Disclosure of Invention
The invention aims to at least solve the technical problem that the conventional drug injection pump is inconvenient for mixed infusion of various drugs. The aim is achieved by the following technical scheme:
The invention provides a drug injection pump, comprising:
A housing defining a receiving cavity therein, the receiving cavity having an opening;
The medicine boxes are arranged in the accommodating cavity and comprise infusion tubes and medicine bags, and the infusion tubes are communicated with the medicine bags;
the driving mechanisms are arranged in the accommodating cavities and are in one-to-one correspondence with the medicine boxes, and the driving mechanisms can drive the medicine boxes to move along the accommodating cavities so as to drive the infusion tubes of the medicine boxes to extend out or retract from the openings;
The pump body is arranged corresponding to the opening and is used for extruding the infusion tube extending out of the opening so as to output the liquid medicine in the medicine bag.
The medicine injection pump provided by the invention is provided with a plurality of medicine boxes, and can be used for simultaneously pre-loading and infusing opium, nonsteroidal, sedative and physiological saline. Every medicine box is furnished with actuating mechanism, and actuating mechanism can drive medicine box linear motion for transfer line and the butt joint of pump body, the pump body is used for extrudeing the transfer line, makes the liquid medicine in the medicine box can be exported. When the liquid medicine in the corresponding medicine box is required to be infused, the driving mechanism can be controlled to drive the medicine box to be in butt joint with the pump body, and the pump body is started to output the required liquid medicine. The invention realizes simultaneous infusion of multiple medicines by the medicine injection pump through a simple and ingenious structure, and has lower cost and good reliability.
In addition, the drug injection pump according to the invention can also have the following additional technical characteristics:
In some embodiments of the invention, a plurality of cartridges are arranged along a first direction inside the accommodating chamber, and the driving mechanism drives the cartridges to move along a second direction, wherein the first direction is perpendicular to the second direction.
In some embodiments of the present invention, the medicine box is slidably disposed in the accommodating cavity along the second direction, the driving mechanism includes a clamping groove, a gear switching component and a handle, the clamping groove is disposed on a wall surface of the accommodating cavity, the clamping groove includes a first gear groove and a second gear groove sequentially disposed along the second direction, the gear switching component is rotatably connected with the medicine box, the handle is connected with the gear switching component, and the gear switching component can be clamped with or separated from the clamping groove through self rotation.
In some embodiments of the present invention, the gear switching assembly includes a rotating member, an elastic member and a moving member, where the rotating member is rotatably connected to the medicine box, the rotating member is connected to the handle, the moving member includes a clamping portion, a connecting portion and an abutting portion that are sequentially connected, the abutting portion abuts against the rotating member, the rotating member can rotate by itself to drive the abutting portion to move away from a direction along the clamping groove, so as to drive the clamping portion to be away from the clamping groove, two ends of the elastic member are respectively connected to the moving member and the medicine box, and the elastic member can drive the clamping portion to approach the clamping groove.
In some embodiments of the present invention, one gear switching component is disposed on two sides of the medicine box, the accommodating cavity is disposed with two clamping grooves corresponding to the two gear switching components, and two ends of the handle are connected with one gear switching component.
In some embodiments of the present invention, a first guiding portion is provided on a wall surface of the accommodating cavity, the medicine box is provided with a second guiding portion, a position of the first guiding portion corresponds to a position of the second guiding portion, and the first guiding portion limits the second guiding portion to slide along the second direction.
In some embodiments of the present invention, the pump body includes a motor, a gear set, and a plurality of cam sets, the motor is in transmission connection with the gear set, the cam sets are arranged in one-to-one correspondence with the medicine boxes, and the cam sets are used for extruding the infusion tube extending from the opening so as to output the medicine liquid in the medicine bag.
In some embodiments of the present invention, the drug infusion pump further comprises a switch, a rotating mechanism and a reset piece, the switch is connected with the shell in a sliding manner, the rotating mechanism is connected with the shell in a rotatable manner, the switch can drive the rotating mechanism to rotate by sliding to squeeze and cut off the infusion tube, and the reset piece drives the rotating mechanism to rotate in a direction away from the infusion tube.
In some embodiments of the present invention, the sliding direction of the switch is parallel to the infusion tube, the rotation mechanism is disposed between the switch and the infusion tube, the rotation mechanism includes a rotation bracket and a rotation shaft, the rotation shaft is connected to the housing, a first end of the rotation bracket is disposed corresponding to the switch, a second end of the rotation bracket is disposed corresponding to the infusion tube, the rotation bracket is rotatably connected to the rotation shaft, the reset member includes a tension spring, and two ends of the tension spring are respectively connected to the first end of the rotation bracket and the housing.
In some embodiments of the present invention, the housing is provided with a mounting opening, the switch is slidably disposed at the mounting opening, the drug injection pump further includes a first limit portion and a second limit portion, the first limit portion is disposed at the mounting opening, the second limit portion is disposed at the switch, and the first limit portion and the second limit portion cooperate to limit the switch.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.
As shown in fig. 1 to 8, the present invention proposes a drug infusion pump comprising:
The housing 10 defines a receiving chamber therein, the receiving chamber having an opening 11.
The medicine boxes are arranged in the accommodating cavity and comprise a transfusion tube 20 and a medicine bag 21, and the transfusion tube 20 is communicated with the medicine bag 21;
the driving mechanisms are arranged in the accommodating cavity and are in one-to-one correspondence with the medicine boxes, and can drive the medicine boxes to move along the accommodating cavity so as to drive the infusion tube 20 of the medicine boxes to extend or retract from the opening 11;
The pump body is arranged corresponding to the opening 11 and is used for extruding the infusion tube 20 extending out of the opening 11 so as to output the liquid medicine in the medicine bag 21.
It will be appreciated that the housing 10 may be of a cube-shaped structure, such as a cube or a cuboid, and is formed by an injection molding process, the housing 10 defines a housing cavity therein, the housing cavity is adapted to the housing 10, the housing cavity is used for housing the other components, one end of the housing cavity is an opening 11, the opening 11 is used for extending a medicine box to be in contact with a pump body, the medicine box includes a cube or a cuboid-shaped medicine bag 21, and a transfusion tube 20, the transfusion tube 20 is disposed at one end of the medicine bag 21 and is attached to the medicine bag 21 so as to be convenient to be squeezed, the driving mechanism may be a manual drawing mechanism or an electric push-pull mechanism, such as a screw motor 40 mechanism, when the driving mechanism is of a manual type, the medicine box is made to move in the housing cavity in a mode of manual drawing matching with a buckle fixing, and extends out of the opening 11 to be in butt joint with the pump body, so that the pump body can squeeze the transfusion tube 20 to deliver medicine liquid, and the pump body can be squeezed through a plurality of cam squeezing mechanisms of cam intervals of a common transfusion pump.
The medicine injection pump provided by the invention is provided with a plurality of medicine boxes, and can be used for simultaneously pre-loading and infusing opium, nonsteroidal, sedative and physiological saline. Each medicine box is provided with a driving mechanism, the driving mechanism can drive the medicine boxes to linearly move, the infusion tube 20 is in butt joint with a pump body, and the pump body is used for extruding the infusion tube 20, so that medicine liquid in the medicine boxes can be output. When the liquid medicine in the corresponding medicine box is required to be infused, the driving mechanism can be controlled to drive the medicine box to be in butt joint with the pump body, and the pump body is started to output the required liquid medicine. The invention realizes simultaneous infusion of multiple medicines by the medicine injection pump through a simple and ingenious structure, and has lower cost and good reliability.
In some embodiments of the invention, a plurality of cartridges are arranged in a first direction of the receiving chamber, and the drive mechanism drives the cartridges in a second direction, the first direction being perpendicular to the second direction.
It will be appreciated that a plurality, such as four, of the cartridges may be spaced apart along the first direction to hold, respectively, opioids, non-steroids, sedatives and saline. The medicine box can be transversely fixed and separated through a limiting structure arranged on the cavity wall of the accommodating cavity. The slidable direction of the medicine box is the second direction, and the second direction can be the longitudinal direction of holding the chamber, and corresponds with opening 11, and the second direction is perpendicular with first direction for the medicine box can be along transversely arranging a plurality of, and makes things convenient for the medicine box to be driven by actuating mechanism alone, and then the medicine box stretches out opening 11 and the butt joint of pump body.
In some embodiments of the present invention, the medicine box is slidably disposed in the accommodating cavity along the second direction, the driving mechanism includes a clamping groove, a gear switching assembly and a handle 32, the clamping groove is disposed on a wall surface of the accommodating cavity, the clamping groove includes a first gear groove 30 and a second gear groove 31 sequentially disposed along the second direction, the gear switching assembly is rotatably connected with the medicine box, the handle 32 is connected with the gear switching assembly, and the gear switching assembly can be clamped with or separated from the clamping groove through rotation of the handle.
Specifically, a longitudinal sliding space is defined in the accommodating cavity, one end of the sliding space is provided with an opening 11 and is in butt joint with the pump body, the driving mechanism is a manual push-pull mechanism, two clamping grooves are formed in the side wall of the accommodating cavity and comprise a first gear groove 30 and a second gear groove 31, the first gear groove 30 is used for limiting the medicine box when the medicine box is in butt joint with the pump body, at the moment, the gear switching assembly is in butt joint with the first gear groove 30, position locking is achieved, and position movement of the medicine box in the infusion process is avoided. The second gear groove 31 is used for limiting the medicine box when the medicine box is not used, and at the moment, the gear switching assembly is clamped with the second gear groove 31 to lock the position, and the whole medicine box is accommodated in the accommodating cavity and is not in contact with the pump body. The gear switching assembly can be an arc assembly or a Z-shaped or L-shaped assembly, the gear switching assembly can be specifically arranged according to actual needs, the gear switching assembly can be rotationally connected with the shell 10 through a rotating shaft, the handle 32 is connected with one end of the gear switching assembly, the gear switching assembly can be driven to rotate by pulling the handle 32, the gear switching assembly is provided with a protruding structure, and the protruding structure is used for extending into the clamping groove to achieve position locking during rotation. When in actual use, the handle 32 drives the gear switching assembly to rotate to limit the medicine box, when the medicine box is in a non-limiting state, the handle 32 is pulled to drive the medicine box to move along the second direction, so that the relative movement of the medicine box and the pump body is realized, and when the medicine box moves to a required position, the medicine box can be locked by loosening the handle 32.
In some embodiments of the present invention, the gear shifting assembly includes a rotating member 33, an elastic member 34 and a movable member 35, the rotating member 33 is rotatably connected with the medicine box, the rotating member 33 is connected with the handle 32, the movable member 35 includes a clamping portion 351, a connecting portion 352 and an abutting portion 353 sequentially connected, the abutting portion 353 abuts against the rotating member 33, the rotating portion can drive the abutting portion 353 to move away from the direction along the clamping groove by rotating itself, so as to drive the clamping portion 351 to be away from the clamping groove, two ends of the elastic member 34 are respectively connected with the movable member 35 and the medicine box, and the elastic member 34 can drive the movable member 35 to approach the clamping groove.
It can be understood that the rotating member 33 may be an L-shaped structure, one end of the rotating member 33 is connected with the handle 32, the other end is used for pushing the movable member 35, the elastic member 34 may be a spring, one end of the spring is fixed with the medicine box through the clamping plate, the other end of the spring is clamped on the connecting portion 352 of the rotating member 33, when the handle 32 is not pulled, the spring provides a restoring force to enable the movable member 35 to be inserted into the clamping groove to limit the medicine box, the movable member 35 comprises the clamping portion 351, the connecting portion 352 and the abutting portion 353 which are sequentially connected, the whole moving member 35 is in a Z-shaped structure, the clamping portion 351 is used for being inserted into the clamping groove to limit, the two ends of the connecting portion 352 are connected with the clamping portion 351 and the abutting portion 353, the connecting portion 353 is in abutting connection with one end of the rotating member 33, specifically, one end of the rotating member 33 far away from the handle 32 is rotatably connected with the casing 10 through the rotating shaft, and the rotating member 33 is provided with a first abutting inclined surface at the end, correspondingly, one end of the abutting portion 353 corresponding to the rotating member 33 is provided with a second abutting inclined surface, when the first abutting inclined surface is not pulled with the rotating member 33, the second abutting portion 353 is in opposite to the first inclined surface, the medicine box is not pulled, namely the medicine box is freely moves away from the first inclined surface 35, namely the pump body is freely moves away from the first inclined surface 35, and the medicine box is freely and is contained in the direction, and can be separated from the moving groove by the moving direction from the moving body 35 through the moving body.
In some embodiments of the present invention, two gear switching assemblies are disposed on two sides of the medicine box, the accommodating cavity is provided with a clamping slot corresponding to the two gear switching assemblies, and two ends of the handle 32 are respectively connected with one gear switching assembly.
Specifically, two gear switching components set up in the bilateral symmetry of medicine box, and two gear switching components can be about the axis symmetry of medicine box for when pulling handle 32, handle 32 both ends are connected with a gear switching component respectively, and the pulling force of handle 32 can evenly transmit to both sides, can be more stable when medicine box adjustment position, be difficult for rocking, or block.
In some embodiments of the invention, the wall of the receiving cavity is provided with a first guide portion and the cartridge is provided with a second guide portion 36, the position of the first guide portion corresponding to the position of the second guide portion 36, the first guide portion limiting the sliding movement of the second guide portion 36 in the second direction.
It can be appreciated that the first guiding portion may be a groove or a protrusion, and correspondingly the second guiding portion 36 is a protrusion matched with the groove or a groove matched with the protrusion, and the extending direction of the first guiding portion and the extending direction of the second guiding portion 36 are set with the second direction, so that the medicine box stably moves along the second direction in the moving process, the whole structure is more stable, the reliability is better, the setting of the guiding portion enables the medicine box to be accurately abutted with the corresponding pump body, and the accident of faults in operation is reduced.
In some embodiments of the present invention, the pump body includes a motor 40, a gear set 41, and a plurality of cam sets 42, the motor 40 is in transmission connection with the gear set 41, the cam sets 42 are disposed in one-to-one correspondence with the medicine boxes, and the cam sets 42 are used for extruding the infusion tube 20 extending from the opening 11 so as to output the medicine liquid in the medicine bag 21.
Specifically, the liquid medicine in the medicine bag 21 is connected with an external infusion tube 20 through the infusion tube 20, the infusion tube 20 is made of soft materials, the liquid medicine in the infusion tube 20 can be extruded through intermittent extrusion of the infusion tube 20, specifically, the liquid medicine can be realized through driving of a cam group 42 by a motor 40, the motor 40 provides power, the cam group 41 transmits the power of the motor 40 to the cam group 42, the cam group 42 comprises an intermediate shaft, an input gear and a plurality of cams sleeved on the intermediate shaft, the cams are arranged at intervals, the protruding directions of the cams are staggered, the gear group 41 is in transmission connection with the input gear, the intermediate shaft is driven to rotate by the input gear, and the output directions of the infusion tube 20 are extruded at intervals after the cams rotate, so that the liquid medicine in the infusion tube 20 is extruded and output along the output directions.
In some embodiments of the present invention, the drug infusion pump further comprises a switch 50, a rotating mechanism and a reset member 51, wherein the switch 50 is slidably connected with the housing 10, the rotating mechanism is rotatably connected with the housing 10, the switch 50 can drive the rotating mechanism to rotate by sliding itself to squeeze the cut-off infusion tube 20, and the reset member 51 drives the rotating mechanism to rotate in a direction away from the infusion tube 20.
It will be appreciated that the medicine bag 21 is used for storing medicine liquid, the infusion tube 20 is communicated with the medicine bag 21, the infusion tube 20 can be arranged along the lateral direction and the top of the medicine bag 21, and can also be arranged along the top of the medicine bag 21, and the medicine injection pump is further provided with a switch 50 assembly for cutting off the passage of the infusion tube 20 according to actual layout requirements, the principle is that the cutting off is performed through a rotary cutting mechanism, and specifically, a rotary mechanism is arranged at a position close to the infusion tube 20, the rotary mechanism is rotationally connected with the shell 10, a slidable switch 50 is arranged on the shell 10, the rotary mechanism is driven to rotate when the switch 50 slides, and when the rotary mechanism rotates to a certain angle, the rotary mechanism is far away from the infusion tube 20 until the infusion tube 20 is completely separated. The reset member 51 holds the rotation mechanism to press the infusion tube 20 when the switch 50 is not slid, and the infusion tube 20 is in a cut-off state.
In some embodiments of the present invention, the sliding direction of the switch 50 is parallel to the infusion tube 20, the rotation mechanism is disposed between the switch 50 and the infusion tube 20, the rotation mechanism includes a rotation bracket 52 and a rotation shaft, the rotation shaft is connected to the housing 10, a first end of the rotation bracket 52 is disposed corresponding to the switch 50, a second end of the rotation bracket 52 is disposed corresponding to the infusion tube 20, the rotation bracket 52 is rotatably connected to the rotation shaft, the reset member 51 includes a tension spring, and both ends of the tension spring are respectively connected to the first end of the rotation bracket 52 and the housing 10.
Specifically, the rotating bracket 52 is in an arc structure, the middle part of the rotating bracket 52 is rotationally connected with the shell 10 through a rotating shaft, the switch 50 is in a cube-shaped structure, one end of the switch 50, which faces the rotating bracket 52, is provided with a first extrusion inclined plane, correspondingly, one end of the rotating bracket 52, which corresponds to the switch 50, is provided with a second extrusion inclined plane, the tension of the tension spring is set to drive the rotating bracket 52 to extrude and cut off the infusion tube 20, when the switch 50 is turned on, the switch 50 slides along a preset track on the shell 10, the second extrusion inclined plane of the rotating bracket 52 is pushed by the first extrusion inclined plane of the switch 50, so that the rotating bracket 52 rotates, and one end of the rotating bracket 52 extruding the infusion tube 20 starts to be far away from the infusion tube 20, so that the infusion tube 20 is opened, and the infusion tube 20 can carry out liquid medicine.
In some embodiments of the present invention, the housing 10 is provided with a mounting opening 12, the switch 50 is slidably disposed at the mounting opening 12, and the drug injection pump further includes a first limiting portion and a second limiting portion, the first limiting portion is disposed at the mounting opening 12, the second limiting portion is disposed at the switch 50, and the first limiting portion cooperates with the second limiting portion to limit the switch 50.
It can be understood that the housing 10 is provided with the mounting opening 12, the switch 50 is embedded in the mounting opening 12, the switch 50 is of a cubic structure as a whole, and the side surface of the switch 50 is provided with a groove which can be clamped on the mounting opening 12 to realize sliding connection. For convenient switch 50 use, can set up limit structure in installing port 12 department, through the cooperation of first spacing portion and second spacing portion, carry out spacingly to switch 50, prevent switch 50 unexpected slip under the pulling force of extension spring, play the unusual function of prevention infusion, specifically, can set up the arch on installing port 12, set up the recess on the switch 50, both cooperate, when switch 50 slides to infusion tube 20 open position, keep the position of switch 50, avoid switch 50 to be pulled by the extension spring accident and cut off infusion tube 20.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.