CN204170172U - Heparin pump - Google Patents
Heparin pump Download PDFInfo
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- CN204170172U CN204170172U CN201420568806.6U CN201420568806U CN204170172U CN 204170172 U CN204170172 U CN 204170172U CN 201420568806 U CN201420568806 U CN 201420568806U CN 204170172 U CN204170172 U CN 204170172U
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- syringe
- motor
- heparin
- pressure head
- master controller
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Abstract
This utility model provides a kind of heparin pump of haemodialysis control unit, comprise master controller, installation panel, motor, drive mechanism, rotation-blocking up detection device, pump seat, syringe and the pressure head for pushing this syringe, master controller is electrically connected with motor, and drive mechanism comprises ball screw, feed screw nut, push rod; Motor one end is connected with rotation-blocking up detection device, and the other end is connected with ball screw, and ball screw is coupled with feed screw nut, and push rod one end is connected with feed screw nut; Syringe is dismountable to be arranged on pump seat, and syringe one end coordinates with pressure head; Pressure head is connected to push rod away from feed screw nut one end.This utility model adopts step motor drive syringe to carry out heparin bolus; and the rotation-clogging protection function of motor is realized by rotation-blocking up detection device; through master controller, whole heparin bolus process is monitored in real time; heparin bolus is more safe and reliable, and inject precision high, run noise low, install easy to operate etc.
Description
Technical field
This utility model relates to technical field of medical instruments, specifically, relates to a kind of heparin bolus pump of haemodialysis control unit.
Background technology
Hemodialysis (hemodialysis, HD), be called for short hemodialysis, popular saying is also referred to as artificial kidney, washes kidney, is the one of blood purification technology.It utilizes semipermeable membrane principle, by diffusion, shifts out external to harmful and unnecessary metabolic wastes various in human body and too much electrolyte, reaches the object purified the blood, and inhale the object reaching and correct Water-Electrolyte and acid-base balance.
Haemodialysis control unit is most widely used a kind of therapeutic equipments in hemodialysis, is usually divided into blood to guard warning system and dialysis solution feed system two parts.Blood monitoring warning system comprises blood pump, heparin pump, the monitoring of sound pulse pressure and air monitering etc.; Dialysis solution feed system comprises temperature control system, liquid mixing system, off gas system, monitored conductivity system, ultrafiltration monitoring and leaks the part compositions such as blood monitoring.Its operation principle is: dialysis concentrated solution and water for dialysis are mixed with qualified dialysis solution through dialysis solution feed system, by hemodialyzer, guards the patient blood that warning system draws carry out solute dispersion, infiltration and Ultrafiltration with blood; Patient blood after effect returns in patient body by blood monitoring warning system, and the liquid after using of simultaneously dialysing is discharged by dialysis solution feed system as waste liquid; Constantly move in circles, complete whole dialysis procedure.
Heparin pump (Heparin Pump) is an individual devices in haemodialysis control unit, and it is equivalent to the micro-injection pump applied clinically, for continuing injecting heparin in patient blood.Contact with air owing to circulating in vitro in blood dialysis, easily blood coagulation occurs, use heparin pump to prevent blood coagulation.Heparin, as anticoagulant conventional clinically, can solidify by anti-Hemostatic Oral Liquid in the external pipelines such as dialyser.
Haemodialysis control unit heparin pump in the market lacks rotation-clogging protection function, does not also possess bolus and automatically reset function, usually completes by hand.In addition, specification is also had to limit to the syringe that heparin bolus uses.
Utility model content
Technical problem to be solved in the utility model is the above-mentioned defect for prior art, by structure innovation, provides a kind of simple to operation, safe and reliable heparin pump.
For solving the problems of the technologies described above, this utility model have employed following technical scheme: design a kind of heparin pump, comprise master controller, installation panel, motor, drive mechanism, rotation-blocking up detection device, pump seat, syringe and the pressure head for pushing this syringe, described motor, drive mechanism, rotation-blocking up detection device are arranged at installation panel side, and pump seat and pressure head are arranged at installation panel opposite side; Master controller is electrically connected with motor, and described drive mechanism comprises ball screw, feed screw nut and push rod; Motor one end is connected with rotation-blocking up detection device, and the other end is connected with ball screw, and ball screw is coupled with feed screw nut, and push rod one end is connected with feed screw nut; Syringe is removable installed on pump seat, and syringe one end coordinates with pressure head; Described pressure head is connected to push rod one end away from feed screw nut.
From such scheme; heparin pump of the present utility model adopts motor to carry out heparin bolus as power source injector-actuated; and the rotation-clogging protection function of motor is realized by arranging rotation-blocking up detection device; through master controller, whole heparin bolus process is monitored in real time; this heparin pump drive mechanism structure is simple; good reliability, heparin bolus is more safe and reliable compared with conventional heparin pump, and inject precision high, run noise low, install easy to operate etc.
Further technical scheme is, described pressure head comprises connecting portion and governor motion, described connecting portion is fixedly connected with described governor motion, described governor motion comprises draw-in groove and adjustment part, described draw-in groove is arranged at side, described adjustment part, described adjustment part comprises bearing, jacking block, nut and adjusting knob with screw portion, described bearing supports described nut rotationally, described adjusting knob engages with described nut, and described jacking block forms liftable threaded engagement by its screw portion and described nut.Syringe can better be fixed by the pressure head of said structure, realizes stable injecting action, and realizes accurately controlling to syringe.
Further technical scheme is, described installation panel is provided with the skip forward/back gauge tap be connected with described step motor control, to realize the bolus of pressure head and to automatically reset.
Further technical scheme is, described pump seat comprises the elastic card for fixing described syringe, this elastic card is connected to the body of described pump seat by bearing pin and torsion spring, described elastic card has spanner, the body of described pump seat has the circular arc concave surface suitable with the surface of described syringe.The pump seat of said structure, therefore can the adaptive syringe installing different size owing to being provided with elastic card, improves versatility, and is convenient to Fast Installation and the dismounting of syringe.
Further technical scheme is, the photoswitch support that described rotation-blocking up detection device comprises the tachometer disc of the rotating shaft of being fixed on described motor, the photoswitch coordinated with this tachometer disc and is fixed on by this photoswitch on described installation panel, described photoswitch is electrically connected on described master controller.
Further technical scheme is, described installation panel is also provided with the Hall element detected for described syringe liquid air, described Hall element is electrically connected on described master controller, and this master controller is also electrically connected on acoustic-optic alarm simultaneously.
Further technical scheme is, is also provided with shaft coupling between described motor and ball screw, and ball screw two ends are supported rotationally by two bearings be fixedly installed on installation panel, and described feed screw nut is movably arranged between described two bearings.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of a kind of embodiment of this utility model heparin pump.
Fig. 2 is the front view of heparin pump shown in Fig. 1.
Fig. 3 is the rear view of heparin pump shown in Fig. 1.
Fig. 4 is the structural representation of the pressure head in the middle of heparin pump shown in Fig. 1.
Fig. 5 is the structural representation of the pump seat in the middle of heparin pump shown in Fig. 1.
Fig. 6 is the schematic block circuit diagram of heparin pump shown in Fig. 1.
Detailed description of the invention
To describe various embodiment of the present utility model below in detail, embodiment wherein in conjunction with the accompanying drawings and describe hereinafter.Although this utility model will be described in conjunction with illustrative embodiments, be to be understood that this utility model is not limited to these illustrative embodiments.On the contrary, this utility model not only comprises these embodiments, but also comprises various distortion, improvement.
Fig. 1 to Fig. 3 shows a kind of heparin pump for haemodialysis control unit of the present utility model, this heparin pump comprises master controller, installation panel 1, motor 2, drive mechanism, rotation-blocking up detection device, pump seat 3, syringe 4 and the pressure head 5 for pushing this syringe 4, pump seat 3 and pressure head 5 are arranged on the side, front 101 of installation panel 1, motor 2 is fixedly connected on the side, the back side 102 of installation panel 1 by motor mounting rack 17, drive mechanism and rotation-blocking up detection device are also positioned at this side, back side 102 simultaneously, syringe 4 is removably mounted on pump seat 3, mounted syringe 4 is positioned at immediately below pressure head 5.Master controller is preferably single-chip microcomputer, it to be arranged on installation panel 1 and to be electrically connected on motor 2, this motor 2 is connected to pressure head 5 to realize moving up and down of this pressure head 5 by drive mechanism, drive syringe 4 by moving up and down of pressure head 5, realize the F.F. of syringe 4, rewind and supply to amount.
Described drive mechanism comprises ball screw 6, feed screw nut 7 and push rod 8 etc., ball screw 6 is vertically arranged on the back side 102 of installation panel 1 by top chock 9 and step 10, and one end of this ball screw 6 is connected to the rotating shaft 21 of motor 2 by shaft coupling 11; Feed screw nut 7 is coupled with ball screw 6, realizes elevating movement by threaded engagement; Push rod 8 is vertically arranged, and its lower end is fixedly connected on feed screw nut 7 by contiguous block 12, and upper end is fixedly connected on pressure head 5.The front 101 of installation panel 1 is provided with the skip forward/back gauge tap 16 with motor 2 control connection, to realize the bolus of pressure head 5 and to automatically reset.Motor 2 exports moment to ball screw 6 by shaft coupling 11, and the rotational movement feed screw nut 7 along with ball screw 6 realizes by the conversion of rotary motion to upper and lower rectilinear motion, and then band dynamic head 5 realizes linkage from top to bottom.
Rotation-blocking up detection device is arranged on the below of motor 2, for feeding back the tach signal of motor 2, it photoswitch support 15 comprising the tachometer disc 13 being fixedly connected on stepping motor rotating shaft 21, the photoswitch 14 coordinated with this tachometer disc 13 and be fixed on by this photoswitch 14 on the back side of installation panel 1, photoswitch 14 is electrically connected on master controller.
See Fig. 4, described pressure head 5 comprises the connecting portion and governor motion that are mutually permanently connected, connecting portion 57 is fixedly connected on push rod 8 upper end, described governor motion comprises adjustment part and is arranged at the draw-in groove 56 of side, adjustment part, this draw-in groove 56 is for the top 41 of fixing injector push-rod, described adjustment part comprises bearing 51, with the jacking block 53 of screw portion 52, nut 54 and adjusting knob 55, bearing 51 is holding nut 54 rotationally, adjusting knob 55 engages with nut 54 and drives it to rotate, jacking block 53 forms liftable threaded engagement by its screw portion 52 with nut 54, realize the accurate control of heparin pump to injector injection.
See Fig. 5, described pump seat 3 comprises the elastic card 31 for fixing syringe 4, this elastic card 31 is connected to the body 34 of pump seat 3 by bearing pin 32 and torsion spring 33, this elastic card 31 has spanner 35, the body 34 of pump seat 3 has the circular arc concave surface 36 suitable with the arc convex surface of syringe 4, and the top of body 34 is provided with the draw-in groove 37 on fixing injector cartridge top 42.The pump seat 3 of this structure carries out the location of syringe 4 owing to being provided with elastic card 31 and circular arc concave surface 36, therefore can the adaptive syringe 4 installing different size, improves versatility.In addition, installation panel 1 is also provided with the Hall element detected for syringe 4 liquid air, this Hall element is electrically connected on master controller, and this master controller is also electrically connected on acoustic-optic alarm simultaneously.
The operating instruction of the heparin pump of said structure is as follows:
1) after using the skip forward/back gauge tap 16 in installation panel 1 front to regulate pressure head 5 to correct position, syringe 4 is loaded pump seat 3, by the adjusting knob 55 on pressure head 5 and the elastic card 31 on pump seat 3, syringe 4 is fixed, wherein adjusting knob 55 drives jacking block 53 to compress the top of syringe 4, eliminates the assemblage gap between syringe 4 and pressure head 5.And the circular arc concave surface 36 of pump seat 3 can realize with the arc convex surface of syringe 4 coincide, play the effect of location.
2) detected in real time bolus infusion processes by rotation-blocking up detection device, after stall phenomenon appears in motor 2, rotation-blocking up detection device can by stall signal feedback to master controller, and sending by master controller stop pulse signal, thus stop injecting.Described rotation-blocking up detection device comprises photoswitch and baffle plate, and described baffle plate is the disk being provided with multiple equally distributed breach, passage of light conducting by the breach on baffle plate of photoswitch.When motor normal rotation in heparin pump, photoswitch can be in the signal of light conducting and disconnection within the predetermined time and convert computer language signal 0 and 1 to by chip control circuit; When there is stall, photoswitch exceedes the scheduled time and is in same signal condition, and converts computer language to by chip control circuit, and sends signal, thus realizes stall and detect.
3) heparin bolus complete after, the signal detected by Hall element, trigger sound and light alarm, stop heparin bolus simultaneously.Heparin setup times then, can trigger sound and light alarm too, and heparin stops injecting.These warning items can guarantee the security reliability of heparin bolus.
See Fig. 6, heparin pump of the present utility model adopts high-precision motor to carry out heparin bolus as power source injector-actuated, holds concurrently with the single-chip microcomputer control technology of advanced person, effectively can improve flow accuracy requirement during heparin injections.Meanwhile, realize the rotation-clogging protection function of motor by arranging rotation-blocking up detection device, thus monitor in real time heparin bolus process, heparin bolus is more safe and reliable, and run noise low, install easy to operate.In addition, also by Hall element, sound and light alarm, heparin bolus completed, inject setup times and monitor.
Above-described is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the present utility model design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (7)
1. heparin pump, comprise master controller, installation panel, motor, drive mechanism, rotation-blocking up detection device, pump seat, syringe and the pressure head for pushing this syringe, it is characterized in that, described motor, drive mechanism, rotation-blocking up detection device are arranged at described installation panel side, and described pump seat and pressure head are arranged at described installation panel opposite side; Described master controller is electrically connected with described motor, and described drive mechanism comprises ball screw, feed screw nut and push rod; Described motor one end is connected with described rotation-blocking up detection device, and the other end is connected with described ball screw, and described ball screw is coupled with described feed screw nut, and described push rod one end is connected with described feed screw nut; Described syringe is removable installed on described pump seat, and this syringe one end coordinates with described pressure head; Described pressure head is connected to described push rod one end away from feed screw nut.
2. heparin pump according to claim 1, it is characterized in that, described pressure head comprises connecting portion and governor motion, described connecting portion is fixedly connected with described governor motion, described governor motion comprises draw-in groove and adjustment part, described draw-in groove is arranged at side, described adjustment part, described adjustment part comprises bearing, jacking block, nut and adjusting knob with screw portion, described bearing supports described nut rotationally, described adjusting knob engages with described nut, and described jacking block forms liftable threaded engagement by its screw portion and described nut.
3. heparin pump according to claim 1, is characterized in that, described installation panel is provided with the skip forward/back gauge tap be connected with described step motor control.
4. heparin pump according to claim 1, it is characterized in that, described pump seat comprises the elastic card for fixing described syringe, this elastic card is connected to the body of described pump seat by bearing pin and torsion spring, described elastic card has spanner, the body of described pump seat has the circular arc concave surface suitable with the surface of described syringe.
5. heparin pump according to claim 1, it is characterized in that, the photoswitch support that described rotation-blocking up detection device comprises the tachometer disc of the rotating shaft of being fixed on described motor, the photoswitch coordinated with this tachometer disc and is fixed on by this photoswitch on described installation panel, described photoswitch is electrically connected on described master controller.
6. heparin pump according to claim 1, it is characterized in that, described installation panel is also provided with the Hall element detected for described syringe liquid air, described Hall element is electrically connected on described master controller, and this master controller is also electrically connected on acoustic-optic alarm simultaneously.
7. heparin pump according to claim 1, it is characterized in that, also be provided with shaft coupling between described motor and ball screw, ball screw two ends are supported rotationally by two bearings be fixedly installed on installation panel, and described feed screw nut is arranged between described two bearings movably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568806.6U CN204170172U (en) | 2014-09-29 | 2014-09-29 | Heparin pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568806.6U CN204170172U (en) | 2014-09-29 | 2014-09-29 | Heparin pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204170172U true CN204170172U (en) | 2015-02-25 |
Family
ID=52559017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420568806.6U Active CN204170172U (en) | 2014-09-29 | 2014-09-29 | Heparin pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204170172U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854101A (en) * | 2016-03-22 | 2016-08-17 | 重庆市澳凯龙医疗器械研究有限公司 | Intelligent heparin pushing injector used for CRRT (continuous renal replacement therapy) machine |
| CN108211053A (en) * | 2017-12-18 | 2018-06-29 | 中南民族大学 | It is a kind of micro for medicine infusion device and micro for medicine infusion system |
| CN114632217A (en) * | 2022-03-01 | 2022-06-17 | 重庆国科医工科技发展有限公司 | Automatic drug delivery device based on micro-displacement sensor |
-
2014
- 2014-09-29 CN CN201420568806.6U patent/CN204170172U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854101A (en) * | 2016-03-22 | 2016-08-17 | 重庆市澳凯龙医疗器械研究有限公司 | Intelligent heparin pushing injector used for CRRT (continuous renal replacement therapy) machine |
| CN105854101B (en) * | 2016-03-22 | 2018-03-27 | 重庆市澳凯龙医疗器械研究有限公司 | A kind of intelligent heparin bolus device for CRRT machines |
| CN108211053A (en) * | 2017-12-18 | 2018-06-29 | 中南民族大学 | It is a kind of micro for medicine infusion device and micro for medicine infusion system |
| CN108211053B (en) * | 2017-12-18 | 2020-09-15 | 中南民族大学 | Trace supplies medicine infusion set and trace supplies medicine infusion system |
| CN114632217A (en) * | 2022-03-01 | 2022-06-17 | 重庆国科医工科技发展有限公司 | Automatic drug delivery device based on micro-displacement sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Dong Fan Inventor after: Nie Shaofu Inventor after: Zheng Shanshan Inventor before: Dong Fan Inventor before: Nie Shaofu Inventor before: Zheng Panpan |
|
| COR | Change of bibliographic data | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 519080 Zhuhai hi tech Zone No. six road, Guangdong Province, 98 Patentee after: Jianfan Biotechnology Group Co., Ltd. Address before: 519080 Zhuhai hi tech Zone No. six road, Guangdong Province, 98 Patentee before: Jafron Biomedical Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211231 Address after: 438000 No. 25, Xinghuang Road, Huangzhou District, Huanggang City, Hubei Province Patentee after: Hubei Jianfan Biotechnology Co.,Ltd. Address before: 519080 Zhuhai hi tech Zone No. six road, Guangdong Province, 98 Patentee before: JAFRON BIOMEDICAL Co.,Ltd. |