CN201058146Y

CN201058146Y - Transfusion monitoring apparatus

Info

Publication number: CN201058146Y
Application number: CNU200720005349XU
Authority: CN
Inventors: 王平
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-28
Filing date: 2007-02-28
Publication date: 2008-05-14
Anticipated expiration: 2017-02-28

Abstract

The utility mode relates to a transfusion monitoring apparatus, in particular to the product of medical apparatus which is cooperatively used with the disposable transfusion device and used to automatically monitor the transfusion. The utility model aims at using the auto-work apparatus to replace part of the manual work to lower the labor intensity of medical care personnel and improve the monitoring reliability of the transfusion. The related product of the utility model is composed of a high-sensitivity sensing unit, a self-adaptive control unit, a precise electromechanical implement mechanism, input buttons and an acoustic-optical indication part. When in use, the user inserts the transfusion device into a U-shaped groove of the apparatus, and then starts transfusion after transfusion parameter setting is done through the buttons, then the apparatus automatically monitor and control the dripping speed and quantity during the whole transfusion. After the present transfusion is completed, the electromechanical implement mechanism will block the transfusion pipe to facilitate the patient to do other transfusion treatments and prevent the blood returning of the patient and send out sound and light to indicate the medical care personnel.

Description

The monitoring infusion device

Affiliated technical field:

This utility model belongs to medical mechanical domain, relates in particular to a kind of cooperation disposable transfusion device and uses, and is used for the medical subsidiary products of automatic infusion monitoring process.

Background technology:

Import medicinal liquid or this medical procedure that supplements the nutrients for the infusion model that passes through that countless sufferers all might suffer from, the indivedual special cases of depolarization use expensive infusion pump, most situations all are to estimate manual mode setting transfusion speed by rule of thumb by medical personnel, and the personnel that accompany and serve by sufferer monitor infusion process then.

Such operating type; make on the one hand medical personnel the frequent expensive time repeat rudimentary work such as speed governing, contact pin, can take place unavoidably on the other hand because of accompanying and serving that personnel are overtired to be neglected, fail the situation of discovery in time after transfusion finishes; cause the sufferer blood back, increased the sufferer misery.Especially weak and sickly for those, often need or the elderly patients of a large amount of transfusions of needs, the transfusion operation of manual type is by the busy children of the work white elephant especially of accompanying and attending to fully.

Summary of the invention:

This utility model provides a kind of can be provided with infusion parameter by the user, automatically monitor and control the medical product of whole infusion process then, be intended at the artificial nursing in the present infusion process in most cases, substitute the part manual work with the equipment automatic job, the labor intensity that reduces medical care and accompany and serve personnel, and improve the reliability of infusion process monitoring.

This utility model realizes that the technical scheme of its product function is: a kind of monitoring infusion device, it has a main case, this host shell is provided with the dropping funnel groove that the dropping funnel position of transfusion device can be snapped in, it is characterized in that, in this main case control unit is housed, I/O unit, detect the photodetector unit and the electromechanical actuator of dropping liquid state, described electromechanical actuator comprises driver part, drive mechanism and pressing mechanism, wherein, the detected dropping liquid signal of described photodetector unit is delivered to control unit, this control unit is controlled described driver part according to the infusion parameter that this dropping liquid signal and I/O unit set, and described driver part drives the pressing mechanism extruding or discharges tube for transfusion via drive mechanism.

Aforesaid monitoring infusion device, wherein, described photodetector unit comprises two infrared transmitting tubes and an infrared receiving tube, be installed in infusion unit titrimeter groove both sides respectively and guarantee that the axis of tee pipe and the axis of dropping funnel are in same vertical plane, two transmitting tubes are installed in the same side, lay respectively at the receiving tube upper and lower and with the axis normal of receiving tube distance all in 2 ~ 3 millimeters scope, receiving tube is arranged separately in opposite side and its axis and dropping funnel intersect vertical axis

Aforesaid monitoring infusion device, wherein, described driver part is a motor, described drive mechanism is a gear reduction.

Aforesaid monitoring infusion device, wherein, described electromechanical actuator also comprises the mechanism's seat that separates setting with described main case, described driver part, drive mechanism and pressing mechanism are installed on this mechanism's seat.

Aforesaid monitoring infusion device, wherein, described electromechanical actuator also comprises a travel switch of assisting control unit to determine described electromechanical actuator reference position.

Aforesaid monitoring infusion device, wherein, described pressing mechanism comprises the sector gear that is provided with a protruding tooth of circular arc and is provided with mechanism's seat of an arc groove, the arc groove of the protruding tooth of the circular arc of sector gear and mechanism's seat can be engaged to concentric position, and the power of described driver part is passed to sector gear by drive mechanism and utilizes the protruding tooth extruding of circular arc or discharge infusion pipeline.

Aforesaid monitoring infusion device, wherein, described detecting unit also comprises comparison circuit, the analogue signal that this comparison circuit is exported infrared receiving tube with hardware mode is transformed to digital pulse signal, and is sent to described control unit.

Aforesaid monitoring infusion device, wherein, described dropping funnel groove is a U-shaped, can insert the Fei Shi dropping funnel that rubs of disposable transfusion device in it.

Aforesaid monitoring infusion device, wherein, the left side of described dropping funnel groove is provided with the system class button and the equipment state indication luminous tube of I/O unit; Transfusion class of jobs button, transfusion that the right side is furnished with I/O unit are provided with project indication luminous tube, nixie display.

Aforesaid monitoring infusion device, wherein, described system class button comprises on and off switch, audible closure button, described equipment state is indicated the luminous tube indicating operating status, transfusion is finished, battery is under-voltage, unusual four kinds of states occur, described transfusion class of jobs button comprise with the closely-related infusion parameter of monitoring infusion button is set, transfusion starts and stop key, described nixie display shows infusion parameter or abnormality code.

Characteristics of the present utility model and advantage are: when using this utility model, the user snaps in infusion unit titrimeter position and following one section tube for transfusion the U-lag of this equipment, after carrying out the infusion parameter setting and start transfusion by button, this equipment will be at the infusion unit titrimeter place, utilize the infrared electro device to detect the situation that splashes into of medicinal liquid, and in real time the dropping liquid signal is sent to the microcontroller of control unit, microcontroller requires with transfusion that the user sets after this signal and in the past signal are carried out calculation process/and parameter is relatively, determine the action of next step right enforcement of this machine, the actuator of control step motor-driven precision removes to compress or discharge tube for transfusion then, make tube for transfusion remain on suitable state, thereby guarantee dripping the monitoring of a speed and an amount in the whole infusion process.After finishing the transfusion task, this chance ends the tube for transfusion of transfusion device to guarantee that phenomenons such as blood back can not appear in doctors and patients, sends prompting in the acousto-optic mode to the entourage simultaneously.

Remove whole infusion process is carried out monitoring, this utility model is also to the continuous self check of product itself, and local state is shown to the user in real time, to be user-friendly to.

Description of drawings:

Fig. 1 relates to the front schematic view of product for this utility model

Fig. 2 relates to the internal structure sketch map of product for this utility model

Fig. 3 relates to the electromechanical actuator sketch map of product for this utility model

Fig. 1 has showed front appearance of the present utility model, and roughly marked the input and output parts that this utility model is used for human-computer interaction interface, comprising: button (01,06,08), luminous tube (02,07) and nixie display (05), caution buzzer (03) etc.Transfusion device U-lag (04) is the slot that cooperates with disposable transfusion device.

Fig. 2 has provided the general configuration and the relative position of the main parts size of key design in this utility model, comprises two infrared transmitting tubes (11), an infrared receiving tube (12), first circuit board (13), second circuit board (10), motor (17), gear drive (18), pressing mechanism (19) and mechanism's seat (15) etc.

Fig. 3 has shown the main composition of electromechanical actuator in this utility model, comprise in mechanism's seat (15), travel switch (16), motor (17), gear drive (18), pressing mechanism (19) and the pressing mechanism main member sector gear (21) and with the arc groove parts such as (22) of mechanism's seat one.

The specific embodiment:

The product of this utility model association mainly partly is made up of I/O unit, photodetector unit, self-adaptive controller, accurate electromechanical actuator etc. from function.

I/O unit refers in particular to and directly serves user and interactive human-machine interface layer parts of equipment and interlock circuit.As can be seen, this part mainly is made up of button (01,06,08), luminous tube (02,07) and nixie display (05), caution buzzer parts such as (03) in Fig. 1.And dispersed placement is in the both sides of transfusion device U-lag (04).

Key elements such as the position of button, shape, size are in principle according to its usage frequency, importance, urgency, key associated property and aesthetic property comprehensive consideration: be furnished with (01) system class buttons such as on and off switch, audible closure in the left side of transfusion device U-lag, the right side has then been arranged with the closely-related infusion parameter setting of monitoring infusion (06), transfusion and has been started and stopped class of jobs such as (08) transfusion button; On the arrangement principle of light-emitting display device according to warning, intuitive, consider with the relatedness and the aesthetic property of button: the left side of transfusion device U-lag is furnished with operate as normal, equipment state or situation indication luminous tubes (02) such as unusual are finished, occurred in transfusion, and the right side arranges that then transfusion is provided with the nixie display (05) of project indication luminous tube (07) and data show such as infusion parameter or abnormality code; Caution buzzer (03) is installed in device interior, and appearance is invisible.

The setting of infusion parameter and the control command of duty are imported by button.As operate as normal, transfusion is finished, battery is under-voltage with simple working state such as unusual occurs is aided with different illumination mode indications with status of equipment by dissimilar luminous tubes, resembles relatively more complicated state such as infusion parameter, abnormality code or status data then by luminous tube and nixie display joint instructions.Take place to occur unusual, when finishing material circumstance such as transfusion, except that using the indication of luminous tube and nixie display, this machine also will be by buzzer with different voice mode warning or prompting.

Photodetector unit partly is made up of high sensitivity infrared emission and receiving tube, comparison circuit etc.In Fig. 2, provided the installation site and the mounting means of two infrared transmitting tubes (11) and an infrared receiving tube (12), its interlock circuit and thereafter the level comparison circuit then be arranged on second circuit board (10) and the first circuit board (13).

Two infrared transmitting tubes (11), an infrared receiving tube (12) are installed in transfusion device U-lag (04) both sides respectively, and guarantee that the axis of tee pipe and the axis of dropping funnel are in same vertical plane, in medicinal liquid when drippage, will inevitably cutting optical path like this, the infrared light illumination that infrared receiving tube is accepted changes, thereby can detect the existence of drop.Comparison circuit then is responsible for being transformed to digitized pulse signal exactly to make things convenient for the processing of control unit with the analogue signal that hardware mode is exported receiving tube.

All circuit of control unit all are arranged on the first circuit board (13) of indicating among Fig. 2, its core devices is a microcontroller, remove and handle the input/output signal of directly serving man machine interface, main task is to handle detected signal in the infusion process in real time, the monitoring medicine liquid droplet is fast and calculate amount of infusion, also will constantly detect the situation of this machine simultaneously.

Closed loop design by means of electromechanical combination in this utility model, microcontroller can also detect because the control that the discordance of discreteness error, the wearing and tearing in the use and the various transfusion device physical dimensions of each parts manufacture process causes departs from, and this departing from of real-Time Compensation guarantee the accuracy monitored, thereby realize the adaptivity of control unit.

The emphasis of Fig. 2 and Fig. 3 is the structure that will show the electromechanical actuator that emphasis is considered in this utility model, and the design of this part helps this utility model to realize low cost, low-power consumption, minor structure, high performance target to a great extent.

As shown in Figures 2 and 3, electromechanical actuator of the present utility model design one with the isolating mechanism of main case seat (15) on, mainly form by travel switch (16), motor (17), gear drive (18) and pressing mechanism parts such as (19).

Adopting with the isolating mechanism of main case seat is to require, reduce product assembling and debugging work difficulty for the machining tolerance that reduces each parts in the electromechanical actuator.The effect of travel switch is to assist microcontroller to determine the reference position of actuator.Motor is then accepted the control of control unit to export the required power of mechanical movement in due course.

Gear drive mainly is made up of the multi-stage coaxial gear, and its effect has two aspects: be the stepping distance of mechanically refinement mechanical mechanism terminal on the one hand, reduced the dependence of this utility model control accuracy to the motor precision; Be the driving force that the utilization lever principle increases the mechanical mechanism terminal on the other hand, this has reduced the requirement of equipment operate as normal to step motor drive moment again.

Pressing mechanism is mainly formed by sector gear (21) with the arc groove (22) of mechanism's seat one.When the driving of motor is delivered to the sector gear (21) of pressing mechanism by gear drive, arc groove mating reaction on it on protruding tooth of circular arc and the mechanism's seat, just can remove to push or discharge the tube for transfusion of the dropping funnel below of the transfusion device that inserts U-lag,, control valve inner liquid medicine flow velocity.She Ji purpose is to increase the one-level gear drive with the stepping distance of step refining mechanical mechanism terminal more on the one hand like this, makes this product can select the motor and the cost drive circuit of lower accuracy for use like this, still can obtain higher controllable precision; Be further to have amplified the active force of dynamo-electric mechanism to tube for transfusion on the other hand, reduction equipment is to the requirement of motor holding torque.Face gear transmission mechanism was to the increase effect of mechanism's driving force before this point cooperated again, make this product can select smaller power output for use, than the motor of the low power consumption source that is used as power.

Above close fit, the collaborative work of described each several part just can finish function of the present utility model.

Claims

1. monitoring infusion device, it has a main case, this host shell is provided with the dropping funnel groove that the dropping funnel position of transfusion device can be snapped in, it is characterized in that, in this main case control unit is housed, I/O unit, detect the photodetector unit and the electromechanical actuator of dropping liquid state, described electromechanical actuator comprises driver part, drive mechanism and pressing mechanism, wherein, the detected dropping liquid signal of described photodetector unit is delivered to control unit, this control unit is controlled described driver part according to the infusion parameter that this dropping liquid signal and I/O unit set, and described driver part drives the pressing mechanism extruding or discharges tube for transfusion via drive mechanism.

2. transfusion monitoring device as claimed in claim 1; It is characterized in that; Described photodetector unit comprises two infrared transmitting tubes and an infrared receiving tube; Be installed in respectively infusion unit titrimeter groove both sides and guarantee that the axis of three pipes and the axis of dropping funnel are in same vertical plane; Two transmitting tubes are installed in the same side; Lay respectively at the receiving tube upper and lower and with the axis vertical range of receiving tube all in 2 ~ 3 millimeters scope; Receiving tube is arranged separately in a side and its axis and dropping funnel intersect vertical axis

3. monitoring infusion device as claimed in claim 2 is characterized in that, described driver part is a motor, and described drive mechanism is a gear reduction.

4. monitoring infusion device as claimed in claim 3 is characterized in that, described electromechanical actuator also comprises the mechanism's seat that separates setting with described main case, and described driver part, drive mechanism and pressing mechanism are installed on this mechanism's seat.

5. monitoring infusion device as claimed in claim 4 is characterized in that, described electromechanical actuator also comprises a travel switch of assisting control unit to determine described electromechanical actuator reference position.

6. as each described monitoring infusion device of claim 1 to 5, it is characterized in that, described pressing mechanism comprises the sector gear that is provided with a protruding tooth of circular arc and is provided with mechanism's seat of an arc groove, the arc groove of the protruding tooth of the circular arc of sector gear and mechanism's seat can be engaged to concentric position, and the power of described driver part is passed to sector gear by drive mechanism and utilizes the protruding tooth extruding of circular arc or discharge infusion pipeline.

7. monitoring infusion device as claimed in claim 6 is characterized in that described detecting unit also comprises comparison circuit, and the analogue signal that this comparison circuit is exported infrared receiving tube with hardware mode is transformed to digital pulse signal, and is sent to described control unit.

8. monitoring infusion device as claimed in claim 6 is characterized in that, described dropping funnel groove is a U-shaped, can insert the Fei Shi dropping funnel that rubs of disposable transfusion device in it.

9. monitoring infusion device as claimed in claim 8 is characterized in that, the left side of described dropping funnel groove is provided with the system class button and the equipment state indication luminous tube of I/O unit; Transfusion class of jobs button, transfusion that the right side is furnished with I/O unit are provided with project indication luminous tube, nixie display.

10. monitoring infusion device as claimed in claim 9, it is characterized in that, described system class button comprises on and off switch, audible closure button, described equipment state is indicated the luminous tube indicating operating status, transfusion is finished, battery is under-voltage, unusual four kinds of states occur, described transfusion class of jobs button comprise with the closely-related infusion parameter of monitoring infusion button is set, transfusion starts and stop key, described nixie display shows infusion parameter or abnormality code.