CN208259980U - A kind of syringe pump - Google Patents

Abstract

The utility model discloses a kind of syringe pump, syringe pump includes: syringe pump ontology, transmission mechanism, mechanism for monitoring；Wherein, transmission mechanism includes: sliding block, sliding rail and push rod, push handle, and sliding block can be moved back and forth along sliding rail；Mechanism for monitoring includes: the sensor for monitoring sliding block shift position, is set on sliding block and can be with sliding block synchronizing moving；The syringe pump further include: be set to the data of the intrinsic sliding block shift position for receiving sensor monitoring of syringe pump and send the control mechanism of alarm command to alarm mechanism according to remaining medical fluid in sliding block mobile position data calculating sliding block current location and/or syringe and/or injection remaining time；It is set to the intrinsic alarm mechanism that alarm signal is issued for alarm command based on the received of syringe pump.Using the syringe pump, the monitoring process of injecting liquid drug state can be made reliable and stable, also, detection process is not influenced by limiting factors such as the structure constructions of syringe.

Description

A kind of syringe pump

Technical field

The utility model relates to the field of medical instrument technology, and in particular to a kind of syringe pump.

Background technique

Syringe pump is the essential medical fluid delivery means of modern medical work, under mainly utilizing system to automatically control Transmission device pushes the piston of syringe to carry out injection infusion, realizes high-precision, the liquid transmission of steady pulse free.

It is most important to the real-time monitoring of liquid infusion state in the use process of syringe pump, wherein medical fluid " connects Nearly completion " state and " completion " state are mostly important, and " being nearly completed " state shows that medical fluid is in close to the state to finish, medical care Personnel need to arrange processing item, such as allotment drug in time according to remaining time；" completion " state shows that medical fluid is in and has finished State, medical staff need to replace medical fluid in time or terminate to be transfused in time.To the above monitoring for being transfused state to the height of medical and nursing work Effect property and accuracy have great influence.

At this stage, the method for artificial observation being relied primarily on for the monitoring of injecting liquid drug state, i.e., by the liquid volume of infusion Injection duration is calculated with preset injection speed, the sometime region before completing total injection duration is set as " close to complete At " section, medical staff can observe infusion situation in time and complete the work such as allotment drug in the time interval；It is pre- reaching When the total infusion duration first calculated, state as " is completed ", medical staff observes infusion situation in time and replaces medical fluid or end Infusion.However, above-mentioned monitoring method has the disadvantage that

By the artificial method calculated and observe, on the one hand, increase the complexity being monitored to the infusion state of medical fluid, On the other hand make the uncertain factor as caused by human factor in injection process and the security risk of infusion is caused to be promoted；

Also, State-dependence is transfused in artificial measuring and calculating and observation, so that artificial observation will be by syringe pump own situation Restrict, for example, the placement location and self construction of certain syringes be not easy to carry out artificial observation, therefore, lack versatility and Accuracy.

Infusion situation can be understood in real time by how providing one kind, and the syringe pump not limited by syringe pump self-condition becomes One of those skilled in the art's technical issues that need to address.

Utility model content

The utility model provides a kind of syringe pump, with solve it is existing to infusion status monitoring during high complexity and High risk, and the problem of shortage versatility and accuracy.

The utility model provides a kind of syringe pump, comprising: syringe pump ontology and to be set to the syringe pump intrinsic Transmission mechanism, mechanism for monitoring, control mechanism, alarm mechanism；

The transmission mechanism includes: sliding block, sliding rail and push rod, push handle, and the sliding rail is set in the syringe pump ontology, The sliding block can be moved back and forth along the sliding rail, mobile direction and the syringe injection side being located on the syringe pump ontology To identical；One end of the push rod is connected with the slide block, and the other end is connect with the push handle, and the push handle can be with the note Emitter piston handle abuts against, and the push rod is moved with the sliding of the sliding block, so that the push handle pushes the syringe living Handle movement is filled in, the distance of the sliding block sliding is greater than or equal to the piston length of syringe；

The mechanism for monitoring includes: the sensor for monitoring the sliding block shift position, is set on the sliding block and can With the sliding block synchronizing moving；

The control mechanism receives the data of the sliding block shift position of the sensor monitoring, and according to the movement Position data calculates remaining medical fluid and/or injection remaining time in the sliding block current location and/or syringe, when the sliding block When remaining medical fluid and/or injection remaining time reach preset alarm level position in current location and/or syringe, to described Alarm mechanism sends alarm command；

The alarm command issues alarm signal to the alarm mechanism based on the received.

Optionally, according to medical fluid remaining in the sliding block current location and/or syringe and/or injection remaining time setting The alarm level, the alarm mechanism correspond to the alarm level and the corresponding alarm signal are arranged.

Optionally, the alarm level includes: that near-space grade and vacant level, institute is arranged according to medical fluid remaining in the syringe The corresponding alarm signal intensity of vacant level is stated greater than the corresponding alarm signal of the near-space grade.

Optionally, the alarm level includes: that rudimentary alarm, middle rank alarm and height is arranged according to the injection remaining time Grade alarm.

Optionally, the form of the alarm signal includes: alarm buzzing, alarm lamp and/or alarm voice.

Optionally, the mechanism for monitoring includes: mutually matched gear set and rack gear, and is set in the gear set Radial magnet, the sensor be magnetoresistive sensor；The gear set is set to the slider top, the magnetoresistive sensor Positioned at the slider top and it is located above the gear set；

The gear set includes: first gear, second gear and third gear, the radial direction of the first gear and the cunning The moving direction of block is parallel, and is meshed with the movement of the sliding block with the rack gear；

The second gear is located in the first gear and coaxial, the second gear with the first gear rotation And it rotates；

The third gear is meshed with the second gear, rotates, the third with the rotation of the second gear Gear be provided in the radial direction can with the third gear synchronous rotate the radial magnet, the radial magnet with The magnetoresistive sensor matches；

The rack gear is set in the syringe pump ontology, and the mobile side of the length direction of the rack gear and the sliding block To consistent.

Optionally, the mechanism for monitoring includes: to be set gradually along the length direction of the sliding rail with multipair magnetic pole Magnetic stripe, the sensor be magnetoresistive sensor；

The magnetic stripe is set on the syringe pump ontology, and can be with the magnetoresistive sensor on the sliding block It matches.

Optionally, the sliding rail is screw rod, and the sliding block is screw, and the screw rod is disposed through logical on the screw Hole is connect with the syringe pump ontology.

Optionally, the transmission mechanism includes: bracket, and the bracket is set in the syringe pump ontology, comprising: bottom plate With the side plate for being located at the bottom plate two sides, the length of the bottom plate is greater than or equal to the piston length of the syringe；The silk The both ends of bar are connected between two side plates, and being rotated by driver, drive the screw described Reciprocal horizontal is mobile on screw rod.

Optionally, described push rod one end passes through the connecting hole being arranged on the side plate and is connected with the slide block.

Optionally, the syringe pump includes: display screen, is set to the surface of the syringe pump ontology, shows the sliding block Remaining medical fluid and/or the data information of injection remaining time in current location and/or syringe.

Optionally, the display screen shows preset prompt information according to the alarm signal.

Optionally, the syringe pump includes: communication means, establishes connection with terminal device, by the sliding block current location And/or in syringe remaining medical fluid and/or injection remaining time be sent to the terminal device, and/or alarm signal is sent To the terminal device.

Compared with prior art, the utility model has the advantage that

It in this application, can be real using the connection relationship of the sliding block, sliding rail, push rod, push handle and syringe piston handle Now to the injection of medical fluid, the process of injection is corresponding with the displacement of the sliding block；The sensor of the mechanism for monitoring and the cunning Block synchronous shift, to realize the monitoring to the slider displacement；The control mechanism receives the displacement number of the sensor monitoring According to and make it is corresponding calculate, to obtain accurately injection status information, also, will be preset, opposite with the injection status information The alarm level prompt information answered is sent to alarm mechanism, to cause alarm.In this process, for injecting liquid drug state Monitoring is completed by the cooperation of the transmission mechanism, mechanism for monitoring, control mechanism and alarm mechanism, is participated in without artificial, medicine The monitoring process that liquid injects state is reliable and stable；

The detection process of injecting liquid drug state relies on the calculating of the inducing function and mechanism for monitoring of sensor, and by preset Alarm level causes alarm, and whole process is automated in strict accordance with preset condition and carried out, and artificial observation is not necessarily to, not by syringe The influence of the limiting factors such as structure construction, effectively improves the versatility and accuracy of monitoring process.

Detailed description of the invention

Fig. 1 is the composed structure schematic diagram of the embodiment of syringe pump provided by the present application；

Fig. 2 is the structural schematic diagram of the syringe pump ontology of the embodiment of syringe pump provided by the present application；

Fig. 3 is the structural schematic diagram of the transmission mechanism of the embodiment of syringe pump provided by the present application；

Fig. 4 is the structural representation of the first implementation of the mechanism for monitoring of the embodiment of syringe pump provided by the present application Figure；

Fig. 5 is the principle of induction figure of magnetoresistive sensor and magnet；

Fig. 6 is the magnetoresistive sensor of second of implementation of the mechanism for monitoring of the embodiment of syringe pump provided by the present application With the positional diagram of magnetic stripe；

Fig. 7 is the syringe pump workflow schematic diagram of the embodiment of syringe pump provided by the present application.

Figure number mark explanation:

100- syringe pump ontology, 101- transmission mechanism, 102- mechanism for monitoring, 103- control mechanism, 104- alarm mechanism, 105- communication means；

201- shell, 202- input unit, 203- display, 204- syringe pump card handle, 205- internal battery, 206- handle Hand, 207- alarm lamp；

301- sliding block, 302- sliding rail, 303- push rod, 304- push handle, 305- bracket；

401- magnetoresistive sensor, 402- gear set, 403- rack gear, 404- is through to magnet, 405- first gear, 406- second Gear, 407- third gear；

601- magnetic stripe.

Specific embodiment

Many details are explained in the following description in order to fully understand the utility model.But this is practical new Type can be implemented with being much different from other way described herein, and those skilled in the art can be practical new without prejudice to this Similar popularization is done in the case where type intension, therefore the utility model is not limited by following public specific implementation.

The application provides a kind of syringe pump, and the syringe pump is described in detail in embodiment presented below.

The present embodiment provides a kind of syringe pumps, please refer to Fig. 1 and understand the embodiment, Fig. 1 is injection provided by this implementation The composed structure schematic diagram of pump.

As shown in Figure 1, the syringe pump includes: syringe pump ontology 100, transmission mechanism 101, mechanism for monitoring 102, control machine Structure 103, alarm mechanism 104；In the present embodiment, the transmission mechanism 101, mechanism for monitoring 102, control mechanism 103 and report Alert mechanism 104 is all set in inside the syringe pump ontology 100.

It is described in detail below according to the specific structure of syringe pump provided by the present application.

The structure of the syringe pump ontology 100 is as shown in Fig. 2, Fig. 2 is syringe pump body construction provided by the present embodiment Schematic diagram.

The syringe pump ontology includes shell 201, input unit 202, display 203, syringe pump card handle 204, in-built electrical Pond 205, handle 206, alarm lamp 207.

Wherein, the shell 201 is responsible for that the component in portion disposed within is protected and is isolated, on the shell 201 It is provided with input unit 202, display 203, internal battery 205, alarm lamp 207.

The input unit 202 is used to pre-enter the set information to the syringe pump, in this embodiment, the input Device 202 can be operational and controlled key button, and the operation button can be the key combination of multiple setting different control functions, such as: What key, alarm switch key, the key for setting defeated empty position information, time of fire alarming and the intensity of adjustment injection speed adjusted presses Key and/or the key etc. of patient information input.

The display 203 is liquid crystal display, mainly to show the infusion situation of medical fluid, when such as injection volume, injection Between, patient information and/or subsequent injections information etc..

The syringe pump card handle 204 is injected for fixing syringe.

For the movement convenient for shell, 201 top of shell is provided with handle 206.

The application enables the syringe to complete to inject, and is provided with the transmission mechanism in the syringe pump ontology 101, as shown in figure 3, Fig. 3 is the structural schematic diagram of transmission mechanism provided by the present embodiment.

The transmission mechanism 101 is used to provide power so that described to the piston for the syringe being set on the syringe pump Syringe completes injecting liquid drug, and the function of other mechanisms is cooperated run, such as: the needs of mechanism for monitoring 102 with it is described The displacement component synchronous shift of transmission mechanism 101 and be monitored, also, the method for operation of the transmission mechanism 101 can be It is carried out under the preassigned pattern of the control mechanism 103.

In the present embodiment, the transmission mechanism 101 include: sliding block 301, sliding rail 302, push rod 303, push handle 304 and Bracket 305.

It should be noted that the sliding block 301, sliding rail 302, push rod 303 and push handle 304 can be set in the injection Body interior is pumped, it is in this embodiment, more convenient and firm to install the component in the transmission mechanism, in the injection Pump body interior is provided with bracket 305.

The bracket 305 includes: bottom plate and the side plate positioned at the bottom plate two sides, and described 303 one end of push rod passes through described The connecting hole being arranged on side plate is connect with the sliding block 301, the motion track when sliding block 301 is moved along the sliding rail 302 In the range of limiting between the side plate, therefore, the distance between two described side plates, i.e.: the length of the bottom plate is needed More than or equal to the piston length of the syringe.

The sliding block 301 can be moved back and forth along the sliding rail 302, and during being injected, the sliding block 301 is moved Dynamic direction is identical as the syringe injection direction being located on the syringe pump ontology 100, it may be assumed that with the movement of syringe piston handle Direction is identical.The range that the sliding block 301 moves on the sliding rail 302, which should meet the syringe piston, will inject Injecting liquid drug finishes moved range in device, so, in this embodiment, the length of the sliding rail 302 is greater than or equal to described The length of syringe piston.

In the present embodiment, the sliding rail 302 is screw rod, and the sliding block 301 is screw, and the screw rod passes through the screw Through-hole, and its both ends passes through bearing respectively and is rotatably connected between two side plates of the bracket 305, and in driver Be rotated by, the screw is matched by its internal screw thread being arranged with the screw thread that the screw rod outer surface is arranged, general Rotation of the screw rod in the screw becomes the linear motion of the screw, it may be assumed that the screw can be past along the screw rod It is multiple mobile.

In this embodiment, the driver by stepper motor match and speed change gear form, the stepper motor with it is described defeated Enter device to be connected, be operated to the injection speed according to set by the input unit.

Fixation for the sliding rail 302, in this embodiment, be by the syringe pump ontology be arranged bracket 305, Realization fixation is supported to the sliding rail 302, it is to be understood that the sliding rail can also directly with the syringe pump ontology Connection.

One end of the push rod 303 pass through the bracket side plate be fixedly connected with the sliding block 301, the other end be located at The push handle 304 on the outside of the side plate is fixedly connected.

Specifically, the push rod 303 is located at the edge of the push handle 304 with 304 connecting pin of push handle, it may be assumed that described Push rod is connect with the push handle to be met at the other positions that the syringe piston handle and the push handle medial surface abut against, described Push handle medial surface is the push handle 304 side opposite with the syringe piston handle.The push rod 303 is with the sliding block 301 Sliding and move, it may be assumed that the moving direction of push rod is the reciprocating movement on injection direction so that the push handle 304 push institute It is mobile to state syringe piston handle, the push rod 303 pushes the note when the sliding block 301 moves back and forth along sliding rail 302 Emitter piston handle is injected.

In the present embodiment, the sliding block 301 and sliding rail 302 are set between two side plates of the bracket 305, described One end of push rod 303 passes through the side plate and is fixedly connected with the sliding block 301, due to the limit of the two sides side plate of the bracket 305 It is set for using, the length of the push rod 303 need to be greater than or equal to the piston length of syringe, so that the syringe piston is removable To syringe bottom to complete to inject.

It is understood that when the push rod is not limited by the side plate, the length of the push rod also it is corresponding not It is restricted.

Position of the mechanism for monitoring 102 to sliding block described in real-time monitoring, and monitoring data are sent to the control Mechanism 103 carries out calculation processing, and core component is displacement sensor, and institute's displacement sensors are synchronous with the sliding block 301 to be moved It is dynamic, while with 301 synchronizing moving of sliding block, the position for monitoring the sliding block 301 is realized and monitoring the displacement of itself It moves.

For the mechanism for monitoring 102, two kinds of implementations are provided in the present embodiment, specific as follows:

First way is:

Monitoring is realized by the cooperation of magnetoresistive sensor and radial magnet, referring to FIG. 4, Fig. 4 is provided by the present embodiment Mechanism for monitoring the first implementation structural schematic diagram.

As shown in figure 4, the mechanism for monitoring includes magnetoresistive sensor 401, gear set 402, rack gear 403, radial magnet 404, the gear set 402 cooperates with the rack gear 403, and the gear set 402 is set on the sliding block, the magnetic resistance Sensor is fixedly installed on the slider top, and is located above the gear set.

In this embodiment, the gear set 402 includes: first gear 405, second gear 406 and third gear 407, institute The radial direction for stating first gear 405 is parallel with the moving direction of the sliding block 301, and with the movement of the sliding block 301 and the tooth Item 403 is meshed；The second gear 406 be located at it is in the first gear 405 and coaxial with the first gear 405, with The rotation of the first gear 405 and rotate；The third gear 407 is meshed with the second gear 406, with described second The rotation of gear 406 and rotate, being provided in the radial direction for the third gear 407 can be same with the third gear 407 The radial magnet for walking rotation, by the cooperation between above-mentioned first, second, third gear, and setting said gear it Between transmission ratio can radial magnet described in flexible setting revolving speed, be allowed to rotate by the revolving speed of pre-provisioning request.

The magnetoresistive sensor 401 by itself in displacement process between the magnetic line of force of magnet the variation of angle come real Now to the monitoring of itself displacement, principle is as shown in figure 5, Fig. 5 is the principle of induction figure of magnetoresistive sensor and magnet, the gear Group 402 moves radially moving direction of the direction for the sliding block 301 along the sliding rail 302, and synchronizing moving, so as to be placed in Radial magnet 404 and 401 synchronizing moving of magnetoresistive sensor in the third gear 407 of the gear set, and the diameter It is rotated to magnet 404 with the rotation of the third gear 407, the magnetic line of force through to magnet 404 and the magneto-resistive transducing The angle of device 401 changes with the rotation of the radial magnet 404, can converse institute according to the variation of the angle The corresponding displacement of magnetoresistive sensor 401 is stated, so that reaching makes the radial magnet 404 match with the magnetoresistive sensor 401 The purpose of conjunction；The rack gear 403 is set in the syringe pump ontology 100, and the length direction of the rack gear 403 and the cunning The moving direction of block 301 is consistent, is parallel to the sliding rail setting.In the present embodiment, the rack gear 403 is set to the branch On the bottom plate of frame 305.

The second way is:

Monitoring, the position pass of the magnetoresistive sensor 401 and magnetic stripe 601 are realized by the cooperation of magnetoresistive sensor and magnetic stripe System is as shown in fig. 6, Fig. 6 is the magnetoresistive sensor of second of implementation of mechanism for monitoring and the positional diagram of magnetic stripe.

In this embodiment, the magnetic stripe 601 has the bar magnet of multipair magnetic pole, along the length side of the sliding rail 302 To being fixedly installed on the syringe pump ontology 100, the set-up mode of the magnetoresistive sensor is identical as above-mentioned preferred embodiment, That is: it with 301 synchronizing moving of sliding block, can be matched with the magnetic stripe 601 in moving process, be parallel to the magnetic at it During item 601 is mobile, change in real time with the angle of the magnetic line of force of every a pair of of magnetic pole of the magnetic stripe, to calculate institute State the displacement of magnetoresistive sensor 401.

The length of the magnetic stripe 601 is consistent with the length of the sliding rail 302, is met in the sliding block 301 with this along described When sliding rail 302 is mobile, during the entire process of the magnetoresistive sensor 401 and 301 synchronizing moving of sliding block, the magnetic stripe 601 Corresponding position is at the magnetoresistive sensor 401.

In this embodiment, the magnetic stripe 601 can be fixed on the bottom plate of the bracket 305, specifically, can expire At the foot magnetic stripe 601 position corresponding with the magnetoresistive sensor 401, length is defined in two of the bracket 305 Between side plate.

The control mechanism 103 receives the data for 301 shift position of the sliding block that the mechanism for monitoring 102 is monitored, Corresponding targeted injection information is calculated according to the mobile position data, and respective handling is carried out to the targeted injection information.

In this embodiment, according to different use requirements, the targeted injection information corresponds to different content-forms, can be The sliding block 301 is presently in position, remaining liquid volume and/or has injected needed for the remaining liquid volume in syringe Time.It, need to be in conjunction with original injection information, the original injection information when being calculated according to the data of the sliding block shift position The calibration information of the defeated empty position of the set syringe corresponding to different size model when including equipment factory, including infusion By the adjustable information such as infusion velocity set by the input unit, Infusion Time when beginning, and including injection start Calibration location information etc. locating for Shi Suoshu displacement sensor.

Ejection of syringe pump progress can be understood for guarantee medical staff or entourage and reminds ejection situation in time, this Shen The syringe pump that please be provided can issue alarm command to alarm mechanism 104 according to the data that the control mechanism 103 provides, described The alarm command issues alarm signal to alarm mechanism 104 based on the received.

It, can be current according to the sliding block to obtain corresponding prompting message or warning message according to different ejection situations Remaining medical fluid and/or injection remaining time set alarm level in position and/or syringe, set in advance when reaching in injection process When fixed alarm level position, alarm command is sent to alarm mechanism.

In this embodiment, the alarm level refers to set by the difference according to the order of importance and emergency state of alarm target Different alert levels, in the present embodiment, the control mechanism 103 are different according to the different settings of the targeted injection information Different warning levels is arranged according to various alarm command grades in the alarm command grade of form.

In this embodiment, the alarm level can be according to the settable near-space grade report of liquid volume remaining in the syringe Alert and vacant level alarm, the intensity of near-space alarm are lower than the intensity of empty alarm.Wherein the near-space grade alarm refers at medical fluid Preset alarm grade when " being nearly completed " state；The alarm of vacant level refers to default when medical fluid is in " completion " state Alarm level.

In this embodiment, the alarm level can also be rudimentary alarm, middle rank according to set by injection remaining time Alarm and advanced alarm.Such as: injection remaining time corresponding to the rudimentary alarm is 5 minutes, and the middle rank alarm institute is right The injection remaining time answered is 3 minutes, and injection remaining time corresponding to the advanced alarm is 0 minute, and warning level presses institute Stating the sequence of alarm command grade from low to high successively enhances.

When the targeted injections information such as medical fluid remaining in the current location of the sliding block 301, syringe or injection remaining time In at least one of when reaching the preset value of above-mentioned alarm command grade, the control mechanism 103 is sent out to the alarm mechanism 104 Send alarm command corresponding with the alarm level.

Alarm command of the alarm mechanism 104 to receive the control mechanism, and opened according to the alarm command Dynamic alarm.The alarm mechanism corresponds to the alarm level and corresponding alarm signal is arranged, therefore, each alarm command have with Corresponding alarm signal.The form of the alarm signal include alarm buzzing, in alarm lamp and alarm voice at least One kind, for example, in the present embodiment, when the alarm level is near-space grade, alarm signal is that alarm buzzing rings three sound, report Warning lamp flash three times, and simultaneously voice broadcast " near-space alarm " twice；When the alarm level is empty alarm, alarm signal Number continuing sound of movement and sound of movement frequency for alarm buzzing accelerates, and alarm lamp persistently flashes and flicker frequency quickening, holds simultaneously Continuous voice broadcast " empty alarm ".

In this embodiment, the alarm signal can also be realized alarm or be reminded by the display 203, for example, The real information of injection, such as remaining injection time, remaining injection ratio are shown while above-mentioned alarm, and can also pass through institute Alarm prompt function is realized in the transformation for stating indicator screen background colour.

In this embodiment, the syringe pump further includes communication means 105, and the communication means 105 are used for and terminal device It is communicatively coupled, including wired connection and wireless connection.When the communication means pass through wired and wireless mode and terminal After equipment establishes connection, the sliding block can be presently in the targets notes such as position, remaining liquid volume and remaining injection time It penetrates information and is sent to the terminal device, and the alarm signal can be sent to the terminal device simultaneously, it thus can be square Just medical staff and/or entourage grasp injection status information in real time；

For the working efficiency for improving medical staff, working strength is reduced, according to the injection of the terminal device real-time display State, medical staff can be adjusted according to original injection information of the injection state to the syringe pump of setting, such as: Ke Yigen Injection speed, and regulation and control injection process are adjusted according to patient's present case of injection status display, thus alternative institute State the function of input unit and control mechanism so that the implementation of injection process and to the control mode of the injection process more Add diversification.

Syringe pump provided by the present embodiment, workflow is referring to FIG. 7, Fig. 7 is injection provided by the present embodiment Pump work flow diagram, as shown in fig. 7, the workflow of the syringe pump are as follows: 701 setting original injection information → 702 steps The rotation of → 703 screw rods is rotated into motor, mobile → 704 magnetoresistive sensors monitoring of screw, obtains displacement data → 705 according to displacement Data calculate, acquisition injection status information → 706 send prompt messages → 707 initiations according to preset alarm grade and alarm.

Wherein, the original injection information is mainly the optional information such as injection speed, syringe model, the stepping electricity Machine adjusts revolving speed according to the injection speed, to drive the screw rod in the screw by defined rotational speed, thus will The rotation of the screw rod becomes the linear motion of the screw, keeps screw mobile by defined speed on the screw rod, screw Moving direction and moving distance be syringe piston injection direction and moving distance, moving situation can reflect medical fluid Injection situation.The magnetoresistive sensor and the screw synchronizing moving, and matched in the process of moving with magnet, by changing The angle of the magnetic line of force of variable-reluctance transducer and magnet can convert to obtain the displacement data of magnetoresistive sensor, reach described in monitoring The purpose of the displacement of magnetoresistive sensor and the screw, during being somebody's turn to do, when the magnetic for changing magnet and rotating radial magnet When the line of force and the angle of magnetoresistive sensor, it need to realize that radial magnet and magnetic resistance pass by the engaged transmission of 7041 gear sets and rack gear The cooperation of sensor, specific engagement process have been explained in detail in the above-mentioned introduction to mechanism for monitoring 102, had not made herein It repeats more.The displacement data of the screw obtained by above-mentioned monitoring can calculate acquisition injection status information, the injection status information Remaining liquid volume and injection remaining time predominantly in syringe.It is preset when injection status information obtained reaches Alarm command grade when, will according to alarm command grade send prompt messages and cause alarm, in this process, need root Type of alarm and corresponding police instruction grade are determined according to the injection status information of acquisition, and such as 7061 by remaining liquid volume setting Near-space grade alarm and vacant level alarm and 7062 by injection remaining time setting rudimentary alarm, middle rank alarm and it is advanced Alarm, each alarm command grade correspond to different warning levels, alarm mechanism alarm command grade starting pair based on the received The alarm signal answered implements alarm.

Although the utility model is disclosed as above with preferred embodiment, its be not for limiting the utility model, it is any Those skilled in the art without departing from the spirit and scope of the utility model, can make possible variation and modification, because This protection scope of the utility model should be subject to the range that the utility model claims are defined.

Claims (8)

1. a kind of syringe pump characterized by comprising syringe pump ontology and be set to the intrinsic transmission of the syringe pump Mechanism, mechanism for monitoring；

The transmission mechanism includes: sliding block, sliding rail and push rod, push handle, and the sliding rail is set in the syringe pump ontology, described Sliding block can be moved back and forth along the sliding rail, mobile direction and the syringe injection direction phase being located on the syringe pump ontology Together；One end of the push rod is connected with the slide block, and the other end is connect with the push handle, and the push handle can be with the syringe Piston handle abuts against, and the push rod is moved with the sliding of the sliding block, so that the push handle pushes the syringe piston handle Mobile, the distance of the sliding block sliding is greater than or equal to the piston length of syringe；

The mechanism for monitoring includes: the sensor for monitoring the sliding block shift position, is set on the sliding block and can be with institute State sliding block synchronizing moving；

The syringe pump further include: for receiving the data of the sliding block shift position of the sensor monitoring and according to institute It states sliding block mobile position data and calculates remaining medical fluid and/or injection remaining time in the sliding block current location and/or syringe The control mechanism of alarm command is sent to alarm mechanism, the control mechanism is set in the syringe pump ontology；

The syringe pump further include: the alarm mechanism of alarm signal, the report are issued for the alarm command based on the received Alert mechanism is set in the syringe pump ontology.

2. syringe pump according to claim 1, which is characterized in that the mechanism for monitoring includes: mutually matched gear set And rack gear, and the radial magnet being set in the gear set, the sensor are magnetoresistive sensor；The gear set setting In the slider top, the magnetoresistive sensor is located at the slider top and is located above the gear set；

The gear set includes: first gear, second gear and third gear, the radial direction of the first gear and the sliding block Moving direction is parallel, and is meshed with the movement of the sliding block with the rack gear；

The second gear is located in the first gear and coaxial, and the second gear turns with the rotation of the first gear It is dynamic；

The third gear is meshed with the second gear, rotates, the third gear with the rotation of the second gear Be provided in the radial direction can with the third gear synchronous rotate the radial magnet, the radial magnet with it is described Magnetoresistive sensor matches；

The rack gear is set in the syringe pump ontology, and the moving direction one of the length direction of the rack gear and the sliding block It causes.

3. syringe pump according to claim 1, which is characterized in that the mechanism for monitoring includes: the length along the sliding rail The magnetic stripe with multipair magnetic pole set gradually on direction, the sensor are magnetoresistive sensor；

The magnetic stripe is set on the syringe pump ontology, and can be matched with the magnetoresistive sensor being located on the sliding block It closes.

4. syringe pump according to claim 1, it is characterised in that: the sliding rail is screw rod, and the sliding block is screw, described The through-hole that screw rod is disposed through on the screw is connect with the syringe pump ontology.

5. syringe pump according to claim 4, which is characterized in that the transmission mechanism includes: bracket, the bracket setting In in the syringe pump ontology, comprising: bottom plate and the side plate positioned at the bottom plate two sides, the length of the bottom plate are greater than or equal to The piston length of the syringe；The both ends of the screw rod are connected between two side plates, and in the drive of driver Dynamic lower rotation, drives screw reciprocal horizontal on the screw rod mobile.

6. syringe pump according to claim 5, it is characterised in that: described push rod one end passes through the company being arranged on the side plate Hole is connect to be connected with the slide block.

7. syringe pump according to claim 1 characterized by comprising for show the sliding block current location and/or The display screen of remaining medical fluid and/or the data information for injecting remaining time in syringe, the display screen are set to the injection Pump the surface of ontology.

8. syringe pump according to claim 7 characterized by comprising for being shown in advance according to the alarm signal The display screen of the prompt information of setting.