CN212627732U

CN212627732U - High-precision multichannel giant magnetostrictive infusion device

Info

Publication number: CN212627732U
Application number: CN202022147395.1U
Authority: CN
Inventors: 刘旭辉; 胡慧娜; 宋浩然; 姚行艳; 徐彬; 蒲美玲; 刘峰
Original assignee: Shanghai Niujia Electromechanical Technology Co ltd; Suzhou Yisan Magnetic Control Technology Co ltd; Shanghai Institute of Technology
Current assignee: Shanghai Niujia Electromechanical Technology Co ltd; Suzhou Yisan Magnetic Control Technology Co ltd; Shanghai Institute of Technology
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-02-26
Anticipated expiration: 2030-09-25

Abstract

The utility model discloses a multichannel giant magnetostrictive infusion set of high accuracy, include: the base is provided with a plurality of infusion apparatus mounting positions for mounting infusion apparatuses in parallel, and the plurality of infusion apparatuses are correspondingly mounted in the infusion apparatus mounting positions; the giant magnetostrictive devices are movably arranged on the base along the arrangement direction of the plurality of infusion apparatus mounting positions; and the controller is connected with the giant magnetostrictive device and used for controlling the giant magnetostrictive device to move to the installation position of the infusion apparatus to be infused and controlling the giant magnetostrictive device to stretch and push the piston rod of the infusion apparatus to move so as to achieve infusion and control infusion amount. The utility model provides a multichannel giant magnetostrictive infusion device of high accuracy can accurate regulation infusion speed and infusion volume and the relevant data of automatic feedback give medical personnel, need not to change the transfusion system, and the fluid infusion is convenient, improves work efficiency by a wide margin.

Description

High-precision multichannel giant magnetostrictive infusion device

Technical Field

The utility model belongs to the medical equipment field, concretely relates to multichannel giant magnetostrictive infusion set of high accuracy.

Background

Infusion pumps are widely used in the field of medical equipment, and generally, infusion pumps are used for driving syringes to accurately, slightly, uniformly and continuously inject liquid medicine into human bodies. Convenient operation, accurate output liquid medicine amount, can adjust the injection speed and the medicine amount at any time according to the state of an illness, can lighten the workload of medical personnel, improves the working efficiency, and can effectively cooperate with the rescue and treatment of the medical personnel.

In order to improve the output accuracy and stability of the infusion pump, the infusion pump is required to have a precise mechanical structure and precise program control, and the matching accuracy between the infusion pump and the infusion set is required to be high. However, the existing infusion pump cannot automatically and accurately feed back related data to medical care personnel, and cannot achieve high-precision infusion quantity. In addition, when different liquid medicines are delivered, the infusion apparatus needs to be taken down according to a fixed installation sequence, the installation mode is complex, errors are easy to occur, and waiting time is needed in the automatic infusion process, so that the rescue efficiency of medical staff can be influenced in an emergency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-precision multichannel giant magnetostrictive infusion device, which solves the technical problem in the background technology.

The technical scheme of the utility model is that:

a high-precision multichannel giant magnetostrictive infusion device, comprising: the infusion device comprises a base, a plurality of infusion device installing positions and a plurality of infusion devices, wherein the infusion device installing positions are used for installing infusion devices; the giant magnetostrictive devices are movably arranged on the base along the arrangement direction of the plurality of infusion apparatus mounting positions; and the controller is connected with the giant magnetostrictive device and used for controlling the giant magnetostrictive device to move to the position of the infusion apparatus installation position to be infused and controlling the giant magnetostrictive device to stretch and push a piston rod of the infusion apparatus to move so as to achieve infusion and control infusion amount.

Preferably, the giant magnetostrictive device is provided with a giant magnetostrictive rod and a transmission rod, the controller regulates and changes current of the giant magnetostrictive device, the current change causes magnetic force change of the giant magnetostrictive rod to drive the giant magnetostrictive rod to extend or retract, and the giant magnetostrictive rod extends to push the transmission rod to move to be in contact with the piston rod and push the piston rod to realize infusion.

Preferably, the displacement sensor is arranged on the inner side face of the infusion apparatus mounting position corresponding to the piston rod, the displacement sensor is connected with the controller and used for measuring displacement data of the piston rod and transmitting the displacement data to the controller, and the controller accurately regulates and controls the telescopic displacement of the giant magnetostrictive device according to the displacement data so as to regulate and control the displacement of the piston rod and accurately control the infusion amount and the infusion speed of the infusion apparatus.

Further preferably, the infusion set comprises an infusion cylinder and a piston rod; the piston rod is sleeved with a first spring for realizing the return of the piston rod, one end of the first spring is abutted against the infusion cylinder, and the other end of the first spring is abutted against one end of the piston rod; after infusion is finished, the giant magnetostrictive device contracts, and the first spring restores to drive the piston rod to reset.

Further preferably, the infusion set mounting site comprises: the middle part of the transfusion tube mounting position is provided with a groove for mounting the transfusion tube; and the piston rod guide mounting position is used for preventing the piston rod from deviating, and a side surface of the piston rod, which faces the giant magnetostrictive device, is provided with a hole for the giant magnetostrictive device to stretch into the hole to push the piston rod to move.

Preferably, the giant magnetostrictive devices are movably arranged on one side of the infusion apparatus mounting positions along the direction in which the plurality of infusion apparatus mounting positions are arranged in parallel through a sliding assembly; the sliding assembly includes: the sliding rail extends along the direction vertical to the extension and retraction direction of the giant magnetostrictive device; the sliding block is arranged on the sliding rail in a sliding mode through a screw rod and is connected with the giant magnetostrictive device; the driving device is connected with the screw rod and the controller; the controller controls the driving device to drive the screw rod to rotate, and the screw rod rotates to drive the sliding block to slide along the sliding rail.

Further preferably, the system further comprises a terminal for inputting user instructions and feeding back infusion data, the terminal is connected with the controller, a user inputs instructions on the terminal, and the controller regulates and controls the current of the giant magnetostrictive device according to the instructions and regulates and controls the infusion speed and the infusion amount.

Further preferably, the controller is provided with a start button for starting infusion, an emergency stop button for emergency stop of infusion and a display lamp for displaying the infusion state. The utility model provides a multichannel giant magnetostrictive infusion set of high accuracy makes it compare with prior art and has following advantage and positive effect:

1. the utility model is provided with the controller and a plurality of transfusion device installation positions, a plurality of transfusion devices are correspondingly arranged in the transfusion device installation positions, meanwhile, a plurality of movable giant magnetostrictive devices arranged along the installation positions of the infusion apparatus are arranged, and when the infusion is needed, the controller regulates and controls the current amount of the giant magnetostrictive device according to the injection speed and the injection dosage instruction input by the user, therefore, the telescopic displacement of the giant magnetostrictive device is regulated, the giant magnetostrictive device telescopically drives a piston rod of the infusion apparatus to reciprocate, so that the infusion speed and the infusion amount are regulated with high precision, and relevant data are automatically and accurately fed back to medical personnel, the medical personnel can regulate the infusion speed and the infusion amount at any time according to needs, the workload of the medical personnel is reduced, the working efficiency is greatly improved, and the device is particularly important in the aspect of matching with the medical personnel for rescue;

2. in the prior art, after the liquid medicine in the infusion apparatus is used up, the infusion apparatus with the liquid medicine needs to be disassembled and assembled, and the infusion apparatus with the liquid medicine needs to be replaced, the disassembly and assembly modes of the infusion apparatus are complex, and the infusion apparatus needs to be installed to the corresponding position in sequence during installation, so that the infusion error caused by confusion of the liquid medicine is easy to occur in the process, and the working efficiency of medical staff is influenced by time waste; the utility model is provided with a plurality of transfusion devices, which can convey different liquid medicines, and after the liquid medicines in the transfusion devices are used up, the needle heads of the transfusion devices can be connected with an external liquid medicine storage device, so as to supplement the liquid medicines in time, thereby being convenient and rapid, needing no disassembly of the transfusion devices and avoiding errors; save time, avoid influencing medical personnel's salvage efficiency under emergency, effectively improve work efficiency.

Drawings

The above and other features and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic view of a high-precision multi-channel super-magnetostrictive infusion device in embodiment 1 of the present invention;

FIG. 2 is a schematic view of a high-precision multi-channel super-magnetostrictive infusion device in embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a giant magnetostrictive device according to embodiment 1 of the present invention;

FIG. 4 is a schematic diagram of the closed-loop control system of the multi-channel giant magnetostrictive infusion device with high precision of the present invention.

Description of the symbols:

1-a base; 2-giant magnetostrictive devices; 201-a housing; 202-coil bobbin; 203-an excitation coil; 204-giant magnetostrictive rod; 205-a transmission rod; 206-a permanent magnet; 207-a sleeve; 208-a spring; 3-a first spring; 4-a terminal; 5-an infusion set mounting position; 501-an infusion tube mounting position; 502-piston rod guide mounting position; 6-an infusion apparatus; 601-an infusion cylinder; 602-a piston rod; 7-a sliding assembly; 701-a slide rail; 702-a slider; 703-a screw mandrel; 8-start button; 9-scram button.

Detailed Description

In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.

For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

Referring to fig. 1-4, the present embodiment provides a high-precision multichannel giant magnetostrictive infusion device comprising: the infusion set mounting device comprises a base 1, a plurality of infusion set mounting positions 5 for mounting infusion sets 6 are arranged on the base in parallel, and the plurality of infusion sets 6 are correspondingly mounted in the infusion set mounting positions 5; the giant magnetostrictive devices 2 are movably arranged on the base 1 along the arrangement direction of the infusion apparatus mounting positions 5; and the controller is connected with the giant magnetostrictive device 2 and is used for controlling the giant magnetostrictive device 2 to move to the position of the infusion apparatus installation position 5 to be infused and controlling the giant magnetostrictive device 2 to stretch and push the piston rod 602 of the infusion apparatus 6 to move so as to achieve infusion and control infusion amount.

The utility model discloses a controller and giant magnetostrictive device 2, transfusion system 6's synergism, when needing the infusion, the controller is according to the injection speed of user input and the instruction of injection dose, regulate and control giant magnetostrictive device 2's current volume, thereby regulate and control giant magnetostrictive device 2's flexible displacement, the piston rod 602 reciprocating motion of giant magnetostrictive device 2 flexible drive transfusion system 6 realizes that high accuracy adjusts infusion speed and infusion volume and automatic accurate feedback relevant data and gives medical personnel, medical personnel can adjust injection speed and infusion volume at any time as required, alleviate medical personnel's work load, improve work efficiency by a wide margin, it is especially important in the aspect of coordinating medical personnel to salvage.

In the present embodiment, the preferred controller is disposed in the base 1, reducing the volume of the structure. Of course, in other embodiments, the location where the controller is disposed is not limited.

In this embodiment, referring to fig. 3, the giant magnetostrictive device 2 has a giant magnetostrictive rod 204 and a transmission rod 205, the controller regulates and changes the current of the giant magnetostrictive device 2, the change of the current causes the change of the magnetic force of the giant magnetostrictive rod 204 to drive the giant magnetostrictive rod 204 to extend or retract, the giant magnetostrictive rod 204 extends to push the transmission rod to move to contact with the piston rod 602 and push the piston rod 602, so as to achieve the infusion.

In the present embodiment, referring to fig. 3, the specific structure of the giant magnetostrictive device 2 includes:

a shell 201, wherein a coil frame 202 is arranged in the shell 201, and an excitation coil 203 is wound on the coil frame 202;

the giant magnetostrictive rod 204 is arranged in a magnetic field formed by the exciting coil 203 and the coil framework 202; a sleeve 207 is arranged between the coil framework 202 and the giant magnetostrictive rod, and permanent magnets 206 are arranged at two ends of the giant magnetostrictive rod 204;

one end of the transmission rod is connected with one end of the giant magnetostrictive rod 204, the other end of the transmission rod penetrates through a through hole at the end part of the shell 201 and is used for pushing a piston rod 602 of the infusion apparatus 6, and a spring 208 for driving the transmission rod to return is arranged between the end part of the shell 201 and the transmission rod.

Referring to fig. 4, when infusion is required, according to an instruction of an infusion amount and an infusion speed input into the controller by a user, the controller converts a digital signal into an analog signal, so as to control the current of the magneto coil, change the magnetic force of the magnetic field, extend the super magnetostrictive rod, push the transmission rod to advance to extend out of the through hole of the housing 201 and push the piston rod 602 of the infusion apparatus 6 at the corresponding position, the piston rod 602 advances forward to realize infusion, the extending speed of the super magnetostrictive rod determines the infusion rate, and the extending length determines the infusion amount of the infusion apparatus 6; thereby controlling and accurately controlling the transfusion speed and the transfusion quantity. After the infusion is completed, the current is changed, the giant magnetostrictive rod 204 contracts, and the transmission rod is reset by the restoring force of the spring 208. Of course, in other embodiments, the specific structure of the super magnetostrictive device is not limited to that described above or shown in the drawings.

In this embodiment, referring to fig. 1 and 2, a displacement sensor is mounted on an inner side surface of the infusion apparatus mounting position 5 corresponding to the piston rod 602, the displacement sensor is mounted on the controller corresponding to the piston rod 602 and is connected to the controller, and is used for measuring displacement data of the piston rod 602 and transmitting the displacement data to the controller, and the controller precisely controls the telescopic displacement of the giant magnetostrictive device 2 according to the displacement data so as to control the displacement of the piston rod 602, and precisely controls the infusion amount and the infusion speed of the infusion apparatus 6. In this embodiment, the preferred displacement sensor is a laser ranging sensor, which has a wider application range and is more accurate in measurement, and the target to be measured does not need to be perpendicular to the transducer of the sensor. Of course, in other embodiments, the specific type of the displacement sensor is not limited to the above, and may be an ultrasonic sensor or a photoelectric sensor, for example.

In the present embodiment, the infusion set 6 comprises an infusion cartridge 601 and a piston rod 602; the piston rod 602 is sleeved with a first spring 3 for realizing the return of the piston rod 602, one end of the first spring 3 abuts against the infusion cylinder 601, and the other end abuts against one end of the piston rod 602; after the infusion is completed, the giant magnetostrictive device 2 contracts, and the first spring 3 recovers to drive the piston rod 602 to reset.

In the present embodiment, the infusion set mounting site 5 comprises: the middle of the transfusion tube installation position 501 is provided with a groove for installing the transfusion tube 601; the piston rod guide mounting position 502 is used for preventing the piston rod from deviating, and a side surface of the piston rod facing the giant magnetostrictive device 2 is provided with an opening for the giant magnetostrictive device 2 to extend into the opening to push the piston rod 602 to move. Of course, in other embodiments, the specific structure of the infusion set mounting position is not limited to the above or shown in the drawings, and may be, for example, a card slot structure, in which the infusion set is clamped.

In the present embodiment, referring to fig. 1 and 2, the giant magnetostrictive device 2 is movably mounted on one side of the infusion set mounting position 5 along the direction of the plurality of infusion set mounting positions 5 in parallel by the sliding assembly 7; wherein the sliding assembly 7 comprises: the sliding rail 701 extends along a direction perpendicular to the extension and retraction direction of the giant magnetostrictive device 2; the sliding block 702 is arranged on the sliding rail 701 in a sliding way through a screw rod 703, and the sliding block 702 is connected with the giant magnetostrictive device 2; the driving device is connected with the screw rod 703 and the controller, the controller controls the driving device to drive the screw rod 703 to rotate, and the screw rod 703 rotates to drive the sliding block 702 to slide to the corresponding infusion apparatus installation position 5 along the sliding rail 701. Of course, in other embodiments, the specific structure of the sliding assembly is not limited to the above, and the sliding assembly is selected according to actual requirements.

In this embodiment, the high-precision multichannel giant magnetostrictive infusion device further comprises a terminal 4 for inputting user instructions and feeding back infusion data, the terminal 4 is connected with the controller, the user inputs instructions on the terminal 4, and the controller adjusts the current of the giant magnetostrictive device 2 according to the instructions and regulates the infusion speed and the infusion amount.

In this embodiment, the controller is provided with a start button 8 for starting infusion, an emergency stop button 9 for emergency stop of infusion and a display lamp for displaying the infusion state, the display is green when the infusion device operates normally, and the display is red when the infusion device fails, so that a user can timely judge the use condition of the infusion device according to the display lamp, and infusion errors caused by failures are avoided.

The detailed use process of the high-precision multichannel giant magnetostrictive infusion device is described in detail below by combining the specific structure and the working principle of the embodiment.

A user selects the type of liquid medicine to be input, the infusion speed and the total infusion amount on the terminal 4, the controller controls the driving device to drive the screw rod 703 to rotate according to an instruction input by the terminal 4, and the screw rod 703 rotates to drive the sliding block 702 to slide to the corresponding infusion apparatus installation position 5, so that the giant magnetostrictive device 2 reaches the position corresponding to the infusion apparatus 6; starting a starting button 8 on the controller, starting the infusion process, and changing the current of the giant magnetostrictive device 2 by the controller at the moment so as to control the telescopic displacement of the giant magnetostrictive rod 204 and control the infusion amount; after the required infusion amount in the command is reached, the super magnetostrictive rod 204 stops moving or retracts to the original position. When the liquid medicine in the infusion cylinder needs to be supplemented, the needle head of the infusion apparatus 6 is replaced, the needle head of the infusion apparatus is connected with an external liquid medicine storage device or the needle head of the infusion apparatus is pricked into a liquid medicine storage bottle, at the moment, the giant magnetostrictive rod 204 is restored to the original position, the piston rod 602 of the infusion apparatus 6 is restored to the original position under the restoring force action of the first spring, at the moment, the liquid medicine in the liquid medicine storage device is sucked into the infusion cylinder 601 by the needle head due to pressure difference, the liquid medicine is supplemented, the infusion apparatus does not need to be detached and replaced (when different liquid medicines are supplemented, the infusion apparatus needs to be cleaned), and the working efficiency is effectively improved.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.

Claims

1. A high-precision multichannel giant magnetostrictive infusion device is characterized by comprising:

the infusion device comprises a base, a plurality of infusion device installing positions and a plurality of infusion devices, wherein the infusion device installing positions are used for installing infusion devices;

the giant magnetostrictive devices are movably arranged on the base along the arrangement direction of the plurality of infusion apparatus mounting positions;

and the controller is connected with the giant magnetostrictive device and used for controlling the giant magnetostrictive device to move to the position of the infusion apparatus installation position to be infused and controlling the giant magnetostrictive device to stretch and push a piston rod of the infusion apparatus to move so as to achieve infusion and control infusion amount.

2. The high-precision multi-channel giant magnetostrictive infusion device according to claim 1, wherein the giant magnetostrictive device is provided with a giant magnetostrictive rod and a transmission rod, the controller regulates and changes current of the giant magnetostrictive device, the change of the current causes the change of magnetic force of the giant magnetostrictive rod to drive the giant magnetostrictive rod to extend or retract, and the extension of the giant magnetostrictive rod pushes the transmission rod to move to contact with the piston rod and push the piston rod to realize infusion.

3. The high-precision multichannel giant magnetostrictive infusion device according to claim 1, comprising a displacement sensor mounted on the inner side surface of the infusion device mounting position corresponding to the piston rod, wherein the displacement sensor is connected with the controller and used for measuring displacement data of the piston rod and transmitting the displacement data to the controller, and the controller precisely regulates and controls the telescopic displacement of the giant magnetostrictive device according to the displacement data so as to regulate and control the displacement of the piston rod and precisely control the infusion amount and the infusion speed of the infusion device.

4. The high-precision multichannel giant magnetostrictive infusion device according to claim 1, wherein the infusion set comprises an infusion cylinder and a piston rod; the piston rod is sleeved with a first spring for realizing the return of the piston rod, one end of the first spring is abutted against the infusion cylinder, and the other end of the first spring is abutted against one end of the piston rod; after infusion is finished, the giant magnetostrictive device contracts, and the first spring restores to drive the piston rod to reset.

5. The high precision multichannel giant magnetostrictive infusion device according to claim 4, wherein the infusion set mounting site comprises:

the middle part of the transfusion tube mounting position is provided with a groove for mounting the transfusion tube;

and the piston rod guide mounting position is used for preventing the piston rod from deviating, and a side surface of the piston rod, which faces the giant magnetostrictive device, is provided with a hole for the giant magnetostrictive device to stretch into the hole to push the piston rod to move.

6. The high-precision multichannel giant magnetostrictive infusion device according to claim 1, characterized in that the giant magnetostrictive device is movably mounted on one side of the infusion set mounting positions along the direction in which the plurality of infusion set mounting positions are juxtaposed by a sliding assembly; the sliding assembly includes:

the sliding rail extends along the direction vertical to the extension and retraction direction of the giant magnetostrictive device;

the sliding block is arranged on the sliding rail in a sliding mode through a screw rod and is connected with the giant magnetostrictive device;

the driving device is connected with the screw rod and the controller; the controller controls the driving device to drive the screw rod to rotate, and the screw rod rotates to drive the sliding block to slide along the sliding rail.

7. The high-precision multi-channel giant magnetostrictive infusion device according to claim 1, further comprising a terminal for inputting user instructions and feeding back infusion data, wherein the terminal is connected with the controller, a user inputs instructions on the terminal, and the controller regulates and controls the current of the giant magnetostrictive device according to the instructions, and regulates and controls the infusion speed and the infusion amount.

8. The high precision multi-channel giant magnetostrictive infusion device according to claim 1, characterized in that the controller is provided with a start button for starting infusion, an emergency stop button for emergency stop of infusion and a display lamp for displaying the status of infusion.