CN102762863B - safety device for peristaltic pump - Google Patents
safety device for peristaltic pump Download PDFInfo
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- CN102762863B CN102762863B CN201180009824.XA CN201180009824A CN102762863B CN 102762863 B CN102762863 B CN 102762863B CN 201180009824 A CN201180009824 A CN 201180009824A CN 102762863 B CN102762863 B CN 102762863B
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- rotor
- roller pump
- wriggling
- wriggling roller
- detection device
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Abstract
A kind of wriggling roller pump, is preferably used for dialysis apparatus, and this wriggling roller pump includes rotor installing rack and may be connected to the rotor of this rotor installing rack.This rotor preferably has multiple labelling apparatus, by type and/or at least one characteristic of layout numeralization rotor of this labelling apparatus.This wriggling roller pump also includes safety device, this safety device has at least one detection device, by at least one detection device described, at least one characteristic of rotor by labelling apparatus numeralization can be checked, and it is possible to start safety device according at least one characteristic in these characteristics of rotor.
Description
Technical field
The present invention relates to the wriggling roller pump with removable rotor, especially, relate to the wriggling of dialysis apparatus
Roller pump.
Background technology
Wriggling roller pump be used to by block transmit fluid, and be such as commonly used in laboratory, little production equipment,
In analytical equipment, infusion pump, and specifically it is also used in dialysis apparatus.They include stator and in this stator interior
The rotor rotated, at least two compression roller blocks the pump hose inserted between the stator and the rotor simultaneously, and thus pushes away
Enter the fluid in this pump hose.
In the wriggling roller pump of the type, such as, for the purpose cleaning or repairing, generally can be by rotor from turning
Dismantle on sub-installing rack, or more exchanging rotor is to be adapted to different materials, diameter and/or the wall thickness of flexible pipe, thus
Such as regulation is for the stage clip of the compression roller of rotor, or utilizes the rotor of different designs to replace rotor.And, a lot
Wriggling roller pump, especially, those used in laboratory, little production equipment, analytical equipment and dialysis apparatus exist
There is between rotor multiple propulsion plant, but described rotor is replaceable is likely to be of different characteristics.These characteristic examples
As possibly relied on the pump hose of use, at other parts transmitted in stream of wriggling roller pump, by the medium of pumping
Viscosity, desired transmission pressure and other parameter.
When pump is blocked or from the flow resistance increase in the downstream of pump, if the operation of wriggling roller pump continues, then exist
Pressure in flexible pipe increases very fast, and in the situation not having other safety precaution, this will be inevitable
Ground cause to flexible pipe or with the damage of hose connection other parts (such as, filter, film, dialyser or drip chamber).
In order to resist this damage, compression roller such as can vertically elastic with the direction rotated be installed, thus they are bent
Take in the pressure of the increase in flexible pipe.In this case, the coefficient of elasticity of installing rack determines maximum obstruction pressure, and
And thus limit the transmission pressure of wriggling roller pump.This such as can be by having parallel to each other can flexibly shifting
The rotor of two arms realize technically, wherein, compression roller is rotatably installed in the end of described arm.
According to pumped fluid, insert the hose of pump hose, use other parts (such as, filter,
Film, dialyser and/or drip chamber) and the type for the treatment of, such as it is being used in the situation of wriggling roller pump of dialysis apparatus,
The coefficient of elasticity of rotor can be different.It is therefoie, for example, about alternative, compared with the rotor of such as blood pump,
The rotor of the wriggling roller pump of dialysis apparatus can be configured with relatively low spring pressure, i.e. relatively low maximum obstruction pressure.
But, the design of the propulsion plant of wriggling roller pump is identical in other side, thus each rotor may be inserted into
In each stator.
During the cleaning and sterilization of dialysis apparatus, the rotor of pump removes from stator, thus contributes to dialysis apparatus and turn
The sterilization of son.In order to identify stator and correct rotor be arranged in each propulsion plant, prior art
Rotor be generally provided with label, but this label can come off over time.If the labelling on label or mark
The most correctly it is read, even if label is intact, there is also the risk of mistake during installation, and
And due to so, such as with the hose inserted, use parts (such as, filter, film, dialyser and/or
Drip chamber) and treatment type do not mate.Therefore there is the danger of the most more exchanging rotor after the sterilization of device,
The most such as cause inserting in specific propulsion plant the rotor with incorrect roller spring pressure, or, example
As when treatment type change time forget more exchanging rotor.This may not only result in the damage of the parts to dialysis apparatus, and
And also result in disadvantageous therapeutic outcome and the threat of the health and lives to patient.
Summary of the invention
Therefore the purpose of the present invention is to ensure that dialysis apparatus utilizes the rotor of right type correctly to construct, and specifically
Ground, has correct spring pressure for each propulsion plant, and reliably gets rid of dialysis dress in all scenario
The possibility of the incorrect installation put.
In the present invention by solving this problem according to the wriggling roller pump described in claim 1.At appurtenance
Preferred implementation is described in detail in requirement.
According to the present invention, the wriggling roller pump that be preferably used for dialysis apparatus is described in detail, including: rotor installing rack；
Rotor, described rotor may be coupled to described rotor installing rack, and preferably has multiple labelling apparatus, by institute
State the type of labelling apparatus and/or arrange at least one characteristic of rotor described in numeralization；And safety device, described peace
Full device has at least one detection device, by least one detection device described, can check and be filled by described labelling
Put at least one characteristic described of the described rotor of numeralization, wherein it is possible to according in these characteristics of described rotor
At least one characteristic starts described safety device.
By the wriggling roller pump as described in claim 1, utilize at least one detection device of safety device,
Such as in can automatically checking rotor type or the regulation of rotor or being arranged on the propulsion plant of wriggling roller pump
At least one characteristic of rotor, and, when incorrect configuration, safety device can be started and thus touch
Send out action suitable.It addition, build so detecting device in the rotor or to prevent from so detecting device
They are attached to rotor by the mode of loss is the most feasible technically.Another it is contemplated that probability for example,
Safety device so is attached to the regulating element of stage clip, thus can via the detection of the position of detection device from
Check the pretension of regulation spring dynamicly, and therefore check the pressure regulating spring, and therefore check blockage pressure.
By which, even if in the situation being carried out regular job by less skilled worker or be in busy in hospital
In commonplace situation, it is also possible to be reliably prevented the incorrect configuration of propulsion plant.
In a preferred embodiment, when the utilization of described wriggling roller pump, there is the rotor of incorrect or unsuitable characteristic
When operating, described wriggling roller pump can be made to lose efficacy by described safety device, and warning letter can be triggered
Number.By which, additionally, such as, the mode of operation of wriggling roller pump is limited to cause the value of danger
(such as, motor only with slow speed operation air is discharged from system or tests this system), or, record rotor join
Put also be it is contemplated that, it is also possible to such as after one of rotor rotation or several rotation, forbid wriggling roller pump immediately
All operations.Hereinbefore, " having the rotor of incorrect or unsuitable characteristic " is understood to be following rotor,
That is, this rotor type, regulation (in this case, such as, there is the rotor of adjustable pressure) or at least one
Rotor characteristics does not has the requirement of its current application corresponding.It is therefoie, for example, it is possible that at least one characteristic of rotor
The most corresponding require or the optimal expected value for operating condition of actual value, or, at least one of rotor is special
The actual value of property is not positioned in the range of the value specified for operating condition.So, for example, it is contemplated that, it is being used for
In the situation of the wriggling roller pump of dialysis machine, according to operating condition, other other factor is contemplated wherein,
Such as wriggle the characteristic of parts of the operator scheme of roller pump, use, such as, flexible pipe, filter for installation, film device
And/or other rotor, operation sequence and/or other data, such as, the data relevant to treatment and/or patient.By
This may insure that maximum safety.
Another preferred embodiment in, described labelling apparatus is set relative to described rotor so that when described turn
Son revolution time, described labelling apparatus carried through described at least one detection device, and by described at least one inspection
Survey device and generate signal pattern, by described signal pattern, at least one characteristic described of described rotor can be detected.This
Represent the most particularly advantageous development of wriggling roller pump, thus, it is possible to by utilizing some simple and reliable biographies
Sensor detects at least one characteristic (without such as imaging technique or pattern recognition) of rotor.Only at the one of rotor
After individual revolution, or after the most several revolution, it is possible to trigger erecting device when incorrect configuration, and
And stop the further operation of wriggling roller pump the most in time.
Another preferred embodiment in, can comment in conjunction with the rotational speed signal driven from wriggling roller pump
Estimate the described signal pattern of at least one detection device described.The rotational speed signal used can be the control of stepper motor
Pulse processed, motor self rate signal (such as, by diverter or generated by single tachometer) generated, generate
Device signal or other rotational speed signal any.By which, for example, it is possible to the revolution number of turns the most exactly
Determine the angular distance between two labelling apparatus, or the scope of detection labelling apparatus and thus different at yardstick
Make a distinction between labelling apparatus.
Another preferred embodiment in, by least two detection device can in each revolution detection described
Each labelling apparatus in labelling apparatus.This represents another possible mode, i.e. which such as determines rotor
Rotary speed, and the most such as and revolution the number of turns independently accurately determine the angular distance between two labelling apparatus
From, or detect the scope of labelling apparatus and thus make a distinction between the labelling apparatus that yardstick is different.
Another preferred embodiment in, according to described at least one detection device described signal pattern, permissible
Additionally determine the number of turns of the rotation of described rotor and/or the direction of rotation.If such as spin rotating shaft rise specific
Distance, only a labelling apparatus or a certain types of labelling apparatus, or have in the rotation less than 180 °
On angular range, several labelling apparatus of distribution, then can also use the inspection of at least one characteristic of responsible rotor simultaneously
The identical detection device surveyed and check measures rotary speed, and possibly, if labelling apparatus is by suitably cloth
Put, it is also possible to measure the direction of the revolution of rotor.
Another preferred embodiment in, can be magnetically, electromagnetically and/or optically with the side being not in contact with
Formula detects described labelling apparatus.This is it possible to assure that the detection of operation and labelling apparatus is all particularly reliable and exempts from
It is disturbed.
Another preferred embodiment in, detection device at least one detection device can have magnetic field sensing
Device, it is therefore preferred to have Hall element.This represents that operation is susceptible to having especially of the detection device of humidity or pollution effect
Profit and reliable embodiment, and it allows the least permanent magnet to be attached on rotor as labelling apparatus
Or in the rotor.
Another preferred embodiment in, in described detection device at least one detection device can have preferably
The proximity transducer of electromagnetic type or the proximity transducer of vicarious.As example, can be by the sensing letter of vortex flow
Single ground and reliably detect labelling apparatus, resonance circuit is lacked of proper care due to the change of sensing, but can also be by electricity
Hold change or optical measurement (IR reflects change) detects.
Another preferred embodiment in, at least one labelling apparatus can have transponder device.This transponder
Device can preferably be RFID transponder (" RF identification " transponder) or RFID chip.This only passes through single marking
Device, worthwhile ground and be reliably achieved the transmission of the multiple or bulk information relevant to rotor.It is therefoie, for example,
Can store and obtain rotor multiple characteristics (such as, blockage pressure, the characteristic of pressure roll, such as width, shape
And material, the quantity of pressure roll), and additionally, single rotor ID or the manufaturing data of rotor or the length of operation
Degree.
Another preferred embodiment in, described labelling apparatus can be arranged on the rotation from described rotor installing rack
At the different distance that axle rises.By which, the quantity of codifiability can be increased in a simple manner, to include
Other characteristic of such as rotor, or the such other information of rotary speed and/or direction such as rotated.According to
Which, even if in the situation that rotor arm is narrower, it is also possible to advantageously arrange labelling apparatus, even and if profit
The accuracy of detection can also be increased with simple and worthwhile detection device.
Another preferred embodiment in, can by described safety device consider other parts characteristic and/
Or operation sequence and/or other data assess at least one characteristic described of described rotor, other parts example described
As for flexible pipe, filter for installation, film device, dialyser and/or other rotor, other data described for example, with control
The data that treatment and/or patient are correlated with.In this way it is possible to relevant multiple parameters will be selected to the correct of rotor
Consider wherein, and it may thereby be ensured that farthest safety and motility.It is therefoie, for example, utilize suitable
Labelling apparatus, labelling and automatic detection arrangement other parts in the stream of dialysis system are the most also feasible
's；Similarly, the operator scheme of dialysis apparatus can be considered wherein.Treatment and/or patient data can such as from
Computer system retrieval and transmitting, it is likely that with the chip card of patient or other identification or data-storage system core
Right.Also it is possible by which, the bar code from mood profile or the retrieval data of the bar code on index card
, thus by such as relevant to patient data and treat relevant information, the type of dialysis, the exchange membrane of use,
The time span of ultrafiltration flow, alternative, flow and treatment considers wherein.In specific situation, this can
The whole planning of dialysis apparatus and the possibility of the automatization of control can be caused.
The present invention is not restricted to specific embodiment.All features of above-mentioned embodiment can be tied the most each other
Close, as long as they do not repel each other and to having no adverse effect each other because of technical reason.
Accompanying drawing explanation
Two exemplary embodiments of the present invention are described in detail below in conjunction with accompanying drawing.In the accompanying drawings:
Fig. 1 is schematically showing of rotating in the stator of the rotor of the propulsion plant of wriggling roller pump；
Fig. 2 is the schematic table of the signal waveform from proximity transducer 1, proximity transducer 2 and proximity transducer 3
Show；
Fig. 3 is schematically showing of the signal waveform of the Hall element in the second illustrative embodiments.
Fig. 1 is rotor (2) the schematically showing in the middle rotation of stator (1) of the propulsion plant of wriggling roller pump.Rotor (2)
Mounted (being detachably connected to), on the rotor installing rack of carrying rotor (2), rotates around pivot (3), and drives
Rotor (2).Rotor (2) have two substantially can the rotor arm (5) of radial displacement, described rotor arm (5) is at one end arranged
There is compression roller (or pressure roll) and be applied to the spring of the restriction on the direction of compression roller (4) by spring (the most not shown)
Pressure.The most unshowned pump hose leans on the wall of stator (1) and is blocked by compression roller (4), wherein spring pressure
Act on this compression roller (4), and be pushed into the most in known manner and pumping at the fluid within pump hose.
In three different distances from pivot (3), in its both sides, two rotors of labelling apparatus can accommodated
In two parts of arm (4), one co-exists in 2 × 2 × 3=12 the index aperture got out or labelling depression (6,7), and leads to
Cross and utilize sealant to seal durably.Some in these labellings depression (6) include the little metal that form is conduction
Sheet or insert (such as, the small pieces of copper, ferrum or aluminum；Solid black circles) labelling apparatus；Other labelling caves in
(7) labelling apparatus (hollow circle) is not included.S1, S2 and S3 (S represents sensor (sensor)) represent in stator (1)
The proximity transducer (8,9,10) of vicarious that is arranged in the rear wall of this stator of near surface.
By the rotation of pump rotor, little sheet metal periodically enters the magnetic field of proximity transducer (8,9,10).Cause
This induces vortex flow in little sheet metal of movement in magnetic field, from magnetic field draw energy, this so can connect
Nearly sensor (8,9,10) is detected in the way of energy expenditure.
Quantity and the geometric distribution of the small pieces of conduction can be with the various features of numeralization rotor (2).Furthermore it is possible to by wink
The sensor signal become is for the detection of complete revolution, and therefore detects the speed of rotation and fully comprise other sensing
The period of device signal.In fig. 2, such as, the nethermost signal S3 in the transient signal waveform of description is used for examining
Survey rotor turns round, and sensor signal in fig. 2 is triggered in rising side.S1 and S2 is with their transient wave
Shape carrys out the correlated characteristic of numeralization rotor.Sensor and the quantity of little sheet metal in FIG are elective.
In another illustrative embodiments unshowned, each rotor is equipped with at least one for detecting rotation
The magnet in the direction turned.The side of rotation is obtained by two Hall elements being connected in series in the rear wall of stator
To, and the chronological analysis of said two Hall element is first it is detected that magnet.If the speed rotated
It is constant, then can be detected the width of magnet by Hall element.
If pump drives the tachometer output being provided with the pulse that the revolution of each rotor generates fixed qty, then can obtain
Obtain the embodiment of special simplification.If magnet has different width, then when magnet is through out-of-date, there is different number
The tacho pulses of amount, as shown in FIG. 3, and this may be used for the detection of width of magnet.
In the illustrative embodiments shown in Fig. 3, rotor 1 has magnet more broader than rotor 2, and can lead to
Excessive magnet identifies through the detection of the quantity of out-of-date tacho pulses.
Process according to the treatment selected, the supervision of rotor can be started during the whole service time of machine.But,
It is immediately performed inspection after mounting and will there is practical significance, such as during the filling of hose system.According to this
The mode of kind, before start of the treatment, can notify that user utilizes incorrect or unsuitable rotor to configure in time
Propulsion plant.
Reference numerals list
1. stator
2. rotor
3. pivot
4. compression roller
5. rotor arm
6. there is the labelling depression of labelling apparatus
The most not there is the labelling depression of labelling apparatus
8. proximity transducer S1
9. proximity transducer S2
10. proximity transducer S3
Claims (15)
1. a wriggling roller pump, described wriggling roller pump includes:
Rotor installing rack；
Rotor, described rotor is connectable to described rotor installing rack, and described rotor includes that one or more labelling fills
Put, by one or the type of more labelling apparatus and/or at least one spy arranging rotor described in numeralization
Property；With
Safety device, described safety device has at least one detection device, by least one detection device described,
Check that the type of described rotor and by described in the described rotor of one or more labelling apparatus numeralization
At least one characteristic,
Wherein, it is possible to start described according to the described type of at least one characteristic described in described rotor and described rotor
Safety device, and
One or more labelling apparatus are set relative to described rotor so that when described rotor turns round, described
One or more labelling apparatus carried through described at least one detection device, thus by described at least one detection
Device generates signal pattern, by described signal pattern, it is possible to detect at least one characteristic described of described rotor.
Wriggling roller pump the most according to claim 1, it is characterised in that described wriggling roller pump is used for dialysing
Device.
Wriggling roller pump the most according to claim 1, it is characterised in that when described wriggling roller pump utilizes tool
When the rotor having incorrect or unsuitable characteristic operates, it is possible to made described rolling of wriggling by described safety device
Sub-pump lost efficacy, and/or can trigger caution signals.
Wriggling roller pump the most according to claim 1, it is characterised in that can be in conjunction with from wriggling roller pump
The rotational speed signal driven assesses the described signal pattern of at least one detection device described.
Wriggling roller pump the most according to claim 1, it is characterised in that detect device energy by least two
Enough in each revolution, detect each labelling apparatus in described labelling apparatus.
Wriggling roller pump the most according to claim 1, it is characterised in that according at least one detection dress described
The described signal pattern put, it is possible to additionally determine the number of turns of the rotation of described rotor and/or the direction of rotation.
Wriggling roller pump the most according to claim 1, it is characterised in that can magnetically and/or optically with
The mode being not in contact with detects one or more labelling apparatus.
Wriggling roller pump the most according to claim 1, it is characterised in that at least in described detection device
Individual detection device has magnetic field sensor.
Wriggling roller pump the most according to claim 8, it is characterised in that described magnetic field sensor is that Hall passes
Sensor.
Wriggling roller pump the most according to claim 1, it is characterised in that at least in described detection device
Individual detection device includes proximity transducer.
11. wriggling roller pumps according to claim 10, it is characterised in that described proximity transducer is sensing
The proximity transducer of formula.
12. wriggling roller pumps according to claim 1, it is characterised in that at least one labelling apparatus includes should
Answer device device.
13. wriggling roller pumps according to claim 1, it is characterised in that one or more labelling dress
Put at the different distance being arranged on from the rotary shaft of described rotor installing rack.
14. wriggling roller pumps according to claim 1, it is characterised in that can be considered by described safety device
The characteristic of other parts, and/or operation sequence and/or data assess at least one characteristic described of described rotor,
Wherein, other parts described include flexible pipe, filter for installation, film device, dialyser and/or other rotor, described
Data include the data relevant to treatment and/or patient.
15. 1 kinds of dialysis machine, described dialysis machine has at least one according to any one in aforementioned claim
Described wriggling roller pump.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010002133.4 | 2010-02-18 | ||
| DE102010002133.4A DE102010002133B4 (en) | 2010-02-18 | 2010-02-18 | Safety device for a hose roller pump |
| PCT/EP2011/052389 WO2011101430A1 (en) | 2010-02-18 | 2011-02-18 | Safety device for a peristaltic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102762863A CN102762863A (en) | 2012-10-31 |
| CN102762863B true CN102762863B (en) | 2016-11-30 |
Family
ID=
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2102503A (en) * | 1981-06-08 | 1983-02-02 | Warner Lambert Co | Peristaltic fluid-machines |
| WO1997010436A2 (en) * | 1995-09-15 | 1997-03-20 | Cobe Laboratories, Inc. | Technique for loading a pump header within a peristaltic pump of a dialysis machine |
| EP1518572A1 (en) * | 2003-09-29 | 2005-03-30 | Japan Servo Co. Ltd. | Tube pump |
| US7578662B1 (en) * | 2005-11-18 | 2009-08-25 | Araz Ibragimov | Peristaltic pump having pumping and occluding rollers and alternating pumping systems utilizing thereof |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2102503A (en) * | 1981-06-08 | 1983-02-02 | Warner Lambert Co | Peristaltic fluid-machines |
| WO1997010436A2 (en) * | 1995-09-15 | 1997-03-20 | Cobe Laboratories, Inc. | Technique for loading a pump header within a peristaltic pump of a dialysis machine |
| EP1518572A1 (en) * | 2003-09-29 | 2005-03-30 | Japan Servo Co. Ltd. | Tube pump |
| US7578662B1 (en) * | 2005-11-18 | 2009-08-25 | Araz Ibragimov | Peristaltic pump having pumping and occluding rollers and alternating pumping systems utilizing thereof |
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