CN106902408B - A kind of blood purification metering device and method - Google Patents
A kind of blood purification metering device and method Download PDFInfo
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- CN106902408B CN106902408B CN201710097091.9A CN201710097091A CN106902408B CN 106902408 B CN106902408 B CN 106902408B CN 201710097091 A CN201710097091 A CN 201710097091A CN 106902408 B CN106902408 B CN 106902408B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3327—Measuring
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a kind of blood purification metering devices, it includes shell, the shell is equipped with spherical or elliposoidal accommodating cavity, the accommodating cavity is built-in with metering bag, the metering bag includes by diaphragm separation and equal the first utricule and the second utricule of volume, liquid entrance is respectively equipped on first utricule and the second utricule, the liquid entrance is separately connected the catheter with pipeline switch；Pressure detector is equipped in the accommodating cavity.The accurate measurement of fluid to be measured can be realized using the metering device；Since in addition to metering bag that can be disposable, the other component of metering device does not contact directly with fluid to be measured generation, avoid mutually infecting, therefore both measurable dialyzates, also measurable displacement liquid and blood；The metering device structure is simple, easy for installation, can be directly mounted at the surface of other equipment, facilitates operation.
Description
Technical field
The present invention relates to the field of medical instrument technology, and in particular to a kind of blood purification metering device and method.
Background technique
End stage renal failure patient needs to carry out maintenance treatment by haemodialysis, and patient renal function failure leads to generation
Thanking to waste cannot excrete, one mode of the haemodialysis as blood purification, and purpose is mainly to remove the metabolism of patient
Waste, especially extra moisture.Excessive moisture is excluded by haemodialysis and is also referred to as ultrafiltration, and the amount of ultrafiltration needs accuracy
Amount, to reach rear optimal dry weight, ultra filtration mostly easily causes the complication such as low blood pressure, and ultra filtration is few then to lead to edema, height
The complication such as blood pressure.So being required to the accurate measurement of liquid during hemodialysis.
Some special measuring pumps or electronic scale are commonly used in blood purification treatment to measure to liquid, such as publication number
For CN105840446, publication date is the Chinese patent application on the 10th of August in 2016 " a kind of high-precision measuring ", passes through piston
The push of liquid in motion control cavity, the volume of cavity and the product of piston action frequency are exactly the total amount measured.Publication number
For CN101323434A, " a kind of blood purification is measured with diaphragm type for Chinese patent that publication date is on 2 11st, 2009
Pump ", similar with piston type metering pump principle, the product of the operating frequency of the volume and movable device of movable chamber is exactly to measure
Total amount is used equally for the liquid meter of dialysis fluid side.And Publication No. CN205209614U, publication date are May 4 in 2016
The Chinese patent " a kind of medical fluid suspension type weigher for CRRT machine " and Publication No. CN204758100U of day, publication date
Phase be on November 11st, 2015 Chinese patent " CRRT therapeutic equipment platform balance ' and by way of weighing based on to displacement liquid
Amount.
The pump housing container part of piston type and diaphragm metering pump is directly contacted with fluid to be measured, can not exclude mutual dirt
Dye, therefore it is only used for the metering to dialysis waste liquid, and it is not useable for the opposed metering for changing liquid or blood；Electronic scale metering due to
Can be used disposable container contain liquid, therefore can Liquid chromatography liquid or blood, but inconvenient to use, occupied space compared with
Greatly, and vulnerable to air stream etc. it interferes.
Summary of the invention
The object of the present invention is to provide a kind of blood purification metering device and method, are not only avoided that cross-infection, but also energy
Dialyzate or displacement liquid or blood are measured.
To achieve the above object, a kind of blood purification metering device provided by the present invention comprising shell, the shell
Body is equipped with spherical or elliposoidal accommodating cavity, and the accommodating cavity is built-in with metering bag, and the metering bag includes passing through diaphragm
Separation and equal the first utricule and the second utricule of volume, be respectively equipped on first utricule and second utricule liquid into
Outlet, the liquid entrance are separately connected the catheter with pipeline switch；Pressure detector is equipped in the accommodating cavity；；
The volume of first utricule or second utricule is equal to the volume of metering bag；First utricule and second utricule
It is separately connected catheter on liquid entrance and leads to and meet at inlet tube, peristaltic pump is set on the inlet tube；Described first
Catheter is also respectively connected on the liquid entrance of utricule and second utricule to lead to and meet at outlet tube.
Preferably, the metering bag under full state is spherical in shape or elliposoidal, the metering bag middle part are provided with
Diaphragm, the diaphragm are in half ellipsoidal surface or hemisphere face shape under the first utricule or the second utricule full state；The accommodating cavity
Match with shape, the size of the metering bag under full state.
Preferably, the shell includes pedestal and upper cover, and the pedestal is equipped with semielliptical shape or hemispheric kerve,
The upper lid is equipped with semielliptical shape or hemispheric inverted draw cut；It is common by closure upper cover and pedestal, the inverted draw cut and kerve
Form spherical or elliposoidal accommodating cavity.
Preferably, it is connected between the upper cover and pedestal for side hinge, the other side passes through setting lock control opening and closing.
Preferably, the pedestal is equipped with the pipeline slot for accommodating catheter, is provided as pipeline on the pipeline slot
The tubing clamp of switch.
It preferably, further include controller, the pipeline switch, peristaltic pump and pressure detector connect with controller signals respectively
It connects.
The invention also discloses a kind of metering methods using above-mentioned blood purification metering device comprising:
Step 1: implementing liquid padding to first utricule, while liquid discharge is implemented to second utricule
Operation, the intracorporal liquid of the second capsule are discharged under the pressure of diaphragm；
Step 2: switching pipeline switch, to the second capsule after the pressure detector detects that the pressure in accommodating cavity rises sharply
Body implements liquid padding, while implementing liquid discharging operation to the first utricule, and the intracorporal liquid of the first capsule is in diaphragm
Pressure under be discharged, after the pressure that pressure detector is detected again in accommodating cavity rises sharply, switch pipeline switch, return step
One；
Step 3: according to the switching times of pipeline switch and the flow of the volume calculations liquid of metering device.
Preferably, the pipeline switch includes feed liquor switch and liquid switchs out, in the step 1 or step 2, leads to
The feed liquor switch for opening the first utricule is crossed, that closes the first utricule goes out liquid switch, opens the peristaltic pump on inlet tube, realizes to the
The liquid of one utricule is filled；By opening the feed liquor switch of the second utricule, that closes the second utricule goes out liquid switch, opens inlet tube
The peristaltic pump of soil is realized and is filled to the liquid of the second utricule.
Preferably, liquid filling is being implemented to the first utricule or the second utricule in the step 1 perhaps step 2
While operation, by opening the feed liquor switch for going out liquid switch, closing on another utricule inlet of another utricule, make institute
State the intracorporal liquid discharge of another capsule.
A kind of blood purification metering device and method provided by above-mentioned technical proposal, can be to phase in blood purification process
The liquid of pass, especially displacement liquid or blood samples of patients are measured, since in addition to metering bag, the other component of metering device is not
It is directly contacted with fluid to be measured generation, avoids mutually infecting, therefore both measurable dialyzates, also measurable displacement liquid and blood；
Metering bag in the metering device accommodating cavity can be disposable, the first equal utricule of metering bag setting volume and the
Two utricules are realized the discharge of fluid to be measured by the mutual extrusion of the first utricule and the second utricule, and pass through setting pressure detection
Device monitors the process of the first utricule and the second utricule filling fluid to be measured, when pressure detector detects that the pressure in accommodating cavity is rapid
When rising, show that the first utricule or the filling of the second utricule are completed, beautiful another intracorporal fluid to be measured discharge of capsule is completed, and controls pipe with this
The switching of way switch, using the metering device, it can be achieved that the accurate measurement of fluid to be measured；The metering device structure is simple,
It is easy for installation, it can be directly mounted at the surface of other equipment, facilitate operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the shell of blood purification metering device of the invention；
Fig. 2 is the structural schematic diagram of the metering bag of blood purification metering device of the invention；
Fig. 3 is that a kind of of the testing liquid of metering method of the invention flows to schematic diagram；
Fig. 4 is that the another kind of the testing liquid of metering method of the invention flows to schematic diagram.
Wherein, 1- shell, 11- pedestal, 12- upper cover, 13- kerve, 14- inverted draw cut, 15- pipeline slot, 3- metering bag, 31- pipe
Way switch, the first tubing clamp of 311-, the second tubing clamp of 312-, 313- third tubing clamp, the 4th tubing clamp of 314-, 32- catheter,
33- diaphragm, 34- inlet tube, 35- peristaltic pump, 36- outlet tube, 37- liquid entrance, 4- pressure detector, 5- controller.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Please refer to attached Fig. 1 and 2, a kind of blood purification metering device provided by the present invention comprising shell 1, it is described
Shell 1 is equipped with spherical or elliposoidal accommodating cavity, and the accommodating cavity is built-in with metering bag 3, and the metering bag 3 includes passing through
Diaphragm separation and equal the first utricule and the second utricule of volume, be respectively equipped on first utricule and the second utricule liquid into
Outlet 37, the liquid entrance is separately connected the catheter 32 with pipeline switch 31；Pressure is equipped in the accommodating cavity to visit
Survey device 4.
Metering device based on above-mentioned technical characteristic can to liquid relevant in blood purification process, especially displacement liquid or
Person's blood samples of patients is measured, since in addition to metering bag, the other component of metering device does not contact directly with fluid to be measured generation,
It avoids mutually infecting, therefore both measurable dialyzates, also measurable displacement liquid and blood；Meter in the metering device accommodating cavity
It measures bag and uses plastic film material, can be disposable, the metering bag setting volume equal the first utricule and the second utricule,
The discharge of fluid to be measured is realized by the mutual extrusion of the first utricule and the second utricule, and monitors the by setting pressure detector
The state of one utricule and the second utricule filling fluid to be measured shows when pressure detector detects that the pressure of metering bag rises sharply
First utricule or the filling of the second utricule are completed, and beautiful another intracorporal fluid to be measured discharge of capsule is completed, with this control piper switch
Switching, using the metering device, it can be achieved that the accurate measurement of fluid to be measured.
In the present embodiment, the metering bag 3 under full state is spherical in shape or elliposoidal, 3 middle part of metering bag
It is provided with diaphragm 33, the diaphragm is in half ellipsoidal surface or hemisphere face shape, institute under the first utricule or the second utricule full state
The volume of the first utricule or the second utricule is stated equal to the volume of metering bag, take the volume of metering bag as the appearance of the metering device
It sets；Shape, the size of the accommodating cavity and the metering bag 3 under full state match.For filling liquid to the first utricule,
To the first utricule filling liquid until the first balloon inflation is accommodated to maximum volume when the first balloon inflation to maximum volume
Intracavitary pressure detector 4 detects in accommodating cavity that the pressure of especially metering bag rises sharply.Liquid is being filled to the-utricule
Meanwhile second utricule implement discharge liquor gymnastics make, liquid is smoothly discharged under the compressing of diaphragm for second utricule, when described
When the first balloon inflation to maximum volume, the intracorporal liquid of the second capsule is emptied completely.Similarly, when second balloon inflation is to most
When large volume, the intracorporal liquid of the first capsule is emptied completely.
In another embodiment of the invention, with the volume of the accommodating cavity be the metering device volume, first
The volume of utricule or the second utricule is more than or equal to the volume of accommodating cavity.For filling liquid to the first utricule, to the
When one utricule fills liquid, limitation is formed to the amount of liquid that the first utricule can fill by the inner wall of accommodating cavity, when the first capsule
When the amount of liquid filled in vivo reaches the volume of accommodating cavity, the pressure detector 4 in accommodating cavity detects the pressure in accommodating cavity
It rises sharply.While filling liquid to the first utricule, the second utricule is implemented discharge liquor gymnastics and is made, second utricule in diaphragm and
Liquid is smoothly discharged under the compressing of the inner wall of accommodating cavity.
Be separately connected on the liquid entrance 37 of first utricule and the second utricule catheter 32 lead to and meet at into
The peristaltic pump 35 for driving feed liquor is arranged on the inlet tube 34 for liquid pipe 34；The liquid of first utricule and the second utricule
Catheter 32 is also respectively connected in inlet and outlet 37 to lead to and meet at outlet tube 36.
The shell 1 includes pedestal 11 and upper cover 12, and the pedestal 11 is equipped with semielliptical shape or hemispheric kerve
13, the upper cover 12 is equipped with semielliptical shape or hemispheric inverted draw cut 14；Pass through closure upper cover 11 and pedestal 12, the inverted draw cut
14 and kerve 13 spherical or elliposoidal accommodating cavity is collectively formed.In the present embodiment, between the upper cover 12 and pedestal 11
It is connect more in succession for side, the other side passes through setting lock control opening and closing.Since metering device of the invention can be used as blood purification
A part of equipment, therefore this metering device can be embedded in or be otherwise coupled in the outside of blood cleaning equipment.At this
In the other embodiments of invention, the lid conjunction mode of the upper cover 12 of the shell 1 can link with the other component of blood cleaning equipment.
In actual use, it can first be installed on the kerve of pedestal 13 after fixing metering bag 3, then cover and close lid 11.
The pedestal 11 is equipped with the pipeline slot 15 for accommodating catheter 32, is provided as pipeline on the pipeline slot 15
The tubing clamp of switch 31.In the present embodiment, the tubing clamp includes feed liquor switch and liquid switchs out, specifically, including setting
The first tubing clamp 311 between the liquid entrance and inlet tube 34 of the first utricule, the liquid disengaging that the first utricule is set
The second tubing clamp 312 mouthful between outlet tube 36, the between the liquid entrance that the second utricule is set and inlet tube 34
The 4th tubing clamp 314 between three tubing clamps 313, the liquid entrance that the second utricule is set and outlet tube 36.Utilize four
Tubing clamp controls the flowing of liquid, and vein clamping structure well known to blood cleaning equipment industry can be used in the tubing clamp, described
Tubing clamp is equipped with electromagnetic drive mechanism and corresponding control circuit.
The blood purification metering device further includes controller 5, the pipeline switch 31, peristaltic pump 35 and pressure detection
Device 4 is connect with 5 signal of controller respectively.The control circuit of this metering device, such as the control circuit and pressure of pipeline switch 31
The control circuit of sensor 4, the unified setting of control circuit with blood cleaning equipment.When for liquid meter, this metering device
It cooperates together with blood cleaning equipment.
The invention also discloses a kind of metering methods using above-mentioned blood purification metering device comprising:
Step 1: implementing liquid padding to first utricule, while liquid discharge is implemented to second utricule
Operation, the intracorporal liquid of the second capsule are discharged under the pressure of diaphragm 33；
Step 2: switching pipeline switch, to second after the pressure detector 4 detects that the pressure in accommodating cavity rises sharply
Utricule implement liquid padding, while to the first utricule implement liquid discharging operation, the intracorporal liquid of the first capsule every
It is discharged under the pressure of film 33, after the pressure that pressure detector 4 is detected again in accommodating cavity rises sharply, switches pipeline switch, return
Return step 1；
Step 3: according to the switching times of pipeline switch and the flow of the volume calculations liquid of metering device, the metering
The volume of device is the volume of metering bag or the volume of accommodating cavity.
In the step 1 or step 2, the feed liquor by opening the first utricule is switched, i.e. the first tubing clamp 311,
That closes the first utricule goes out liquid switch, i.e. the second tubing clamp 312 opens the peristaltic pump on inlet tube, realizes to the first utricule
Liquid filling；By opening the feed liquor switch of the second utricule, i.e. third tubing clamp 313, that closes the second utricule goes out liquid switch, i.e.,
4th tubing clamp 314 opens the peristaltic pump on inlet tube, realizes and fills to the liquid of the second utricule.
The same of liquid padding is being implemented to the first utricule or the second utricule in the step 1 perhaps step 2
When, by opening the feed liquor switch for going out liquid switch, closing on another utricule inlet of another utricule, make another capsule
Intracorporal liquid discharge.
Attached drawing 3 is please referred to, discloses and liquid padding is implemented to first utricule, while is real to second utricule
Liquid during applying liquid discharging operation flows to schematic diagram.Wherein, liquid drives through peristaltic pump 35 and reaches catheter, controller
The opening and closing of 5 four tubing clamps of control specifically to open the first tubing clamp 31 1, closes the second tubing clamp 312, closes third
Tubing clamp 313 opens the 4th tubing clamp 314, realizes that being filled beautiful second utricule to the first utricule is discharged liquid.
When pressure detector detects that pressure is flown up, show that the filling of the first utricule finishes, while the second utricule is arranged
Sky, control four tubing clamps of switching of controller 5, closes the first tubing clamp 31 1, opens the second tubing clamp 312, open third pipe
Road folder 313, closes the 4th tubing clamp 314, realizes that being filled beautiful first utricule to the second utricule is discharged liquid.It please refers to attached
Fig. 4 is disclosed and is implemented liquid padding to second utricule, while implementing liquid discharging operation mistake to first utricule
Liquid in journey flows to schematic diagram.
Similarly, when pressure detector detects that pressure is flown up again, show that the filling of the second utricule finishes, while the
The emptying of one utricule.The control of controller 5 at this time switches four tubing clamps and executes a new circulation.
The counting of the metering device can be completed by controller, and the display equipment by connecting with metering device carries out
Display.The product of the volume of the switching frequency and metering device of the tubing clamp is the flow velocity of liquid, and tubing clamp is cut
The product of the volume of the total degree and metering device that change is then the total amount of liquid.Specifically, the flow of the liquid be Q=N ×
V, N are the total degree of tubing clamp switching, and V is the volume of metering device.The flow velocity of the liquid is v=f × V, and f is pipeline
The frequency of switching is pressed from both sides, V is the volume of metering device.Since the metering bag uses film material, one in actual use pledges love
Under condition, the volume error of accommodating cavity and metering bag be can be ignored.
The metering method contains liquid using disposable metering bag, so that other of liquid to be batched and device
Component does not occur directly to contact, and can avoid mutually pollution, prevents cross-infection between patient, can be not only used for the metering of dialyzate, more
It can be used for the metering of displacement liquid and blood.The accommodating cavity and metering bag of the metering device can be designed as plurality of specifications, when with
Lesser specification can be used when ultrafiltrate metering, for biggish specification, such as 8ml or 16ml to can be used when displacement liquid metering
Deng keeping the application of metering device more flexible, and avoid the waste of resource.
The above is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come
It says, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement is also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of blood purification metering device, which is characterized in that it includes shell, and the shell is equipped with spherical or ellipsoid
The accommodating cavity of shape, the accommodating cavity are built-in with metering bag, the metering bag include by diaphragm separation and volume it is equal first
Liquid entrance, the liquid entrance are respectively equipped on utricule and the second utricule, first utricule and second utricule
It is separately connected the catheter with pipeline switch；Pressure detector is equipped in the accommodating cavity；First utricule or described
The volume of two utricules is equal to the volume of metering bag；It is separately connected on the liquid entrance of first utricule and second utricule
Catheter leads to and meets at inlet tube, and peristaltic pump is arranged on the inlet tube；First utricule and second utricule
Catheter is also respectively connected on liquid entrance to lead to and meet at outlet tube.
2. blood purification metering device as described in claim 1, which is characterized in that the metering bag under full state
Spherical in shape or elliposoidal, the metering bag middle part are provided with diaphragm, and the diaphragm is full of shape in the first utricule or the second utricule
It is in half ellipsoidal surface or hemisphere face shape under state；
Shape, the size of the accommodating cavity and the metering bag under full state match.
3. blood purification metering device as described in claim 1, which is characterized in that the shell includes pedestal and upper cover,
The pedestal is equipped with semielliptical shape, and perhaps the hemispheric kerve upper lid is equipped with semielliptical shape or hemispheric top
Slot；By closure upper cover and pedestal, spherical or elliposoidal accommodating cavity is collectively formed in the inverted draw cut and kerve.
4. blood purification metering device as claimed in claim 3, which is characterized in that be side between the upper cover and pedestal
Hinge connection, the other side pass through setting lock control opening and closing.
5. blood purification metering device as claimed in claim 3, which is characterized in that the pedestal is equipped with leads for accommodating
The pipeline slot of liquid pipe is provided as the tubing clamp of pipeline switch on the pipeline slot.
6. blood purification metering device as described in claim 1, which is characterized in that further include controller, the pipeline is opened
It closes, peristaltic pump and pressure detector are connect with controller signals respectively.
7. a kind of metering method using the blood purification metering device of any of claims 1-6, feature exist
In comprising:
Step 1: implementing liquid padding to first utricule, while liquid discharging operation is implemented to second utricule,
The intracorporal liquid of second capsule is discharged under the pressure of diaphragm；
Step 2: switching pipeline switch after the pressure detector detects that the pressure in accommodating cavity rises sharply, to the second utricule reality
Applying liquid padding, while liquid discharging operation, pressure of the intracorporal liquid of the first capsule in diaphragm are implemented to the first utricule
It is discharged under power, after the pressure that pressure detector is detected again in accommodating cavity rises sharply, switches pipeline switch, return step one；
Step 3: according to the switching times of pipeline switch and the flow of the volume calculations liquid of metering device.
8. metering method as claimed in claim 7, which is characterized in that the pipeline switch includes feed liquor switch and liquid is opened out
It closes, in the step 1 or step 2, the feed liquor by opening the first utricule is switched, and the liquid that goes out for closing the first utricule is opened
It closes, opens the peristaltic pump on inlet tube, realize and the liquid of the first utricule is filled；By opening the feed liquor switch of the second utricule,
That closes the second utricule goes out liquid switch, opens the peristaltic pump of feed liquor pipeclay, realizes and fills to the liquid of the second utricule.
9. metering method as claimed in claim 8, which is characterized in that in the step 1 or step 2, to first
While utricule or the second utricule implement liquid padding, the liquid that goes out by opening another utricule is switched, and is closed described another
Feed liquor switch on one utricule inlet makes the intracorporal liquid discharge of another capsule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710097091.9A CN106902408B (en) | 2017-02-22 | 2017-02-22 | A kind of blood purification metering device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710097091.9A CN106902408B (en) | 2017-02-22 | 2017-02-22 | A kind of blood purification metering device and method |
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| Publication Number | Publication Date |
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| CN106902408A CN106902408A (en) | 2017-06-30 |
| CN106902408B true CN106902408B (en) | 2019-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710097091.9A Active CN106902408B (en) | 2017-02-22 | 2017-02-22 | A kind of blood purification metering device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111068173B (en) * | 2020-01-03 | 2022-07-29 | 上海旭润医学科技有限责任公司 | Disposable wearable micro-flow continuous drug delivery system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1569265A (en) * | 2004-04-23 | 2005-01-26 | 暨南大学 | Method and apparatus for dialysate preparation and supply |
| CN1872357A (en) * | 2006-04-28 | 2006-12-06 | 重庆山外山科技有限公司 | Capacitance balance and ultrafiltration equipment in use for blood purification |
| CN102908685A (en) * | 2012-07-26 | 2013-02-06 | 重庆山外山科技有限公司 | Balance cavity control system for hemodialysis machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4116177A1 (en) * | 1991-05-17 | 1992-11-19 | Fresenius Ag | Balance chamber for haemodialysis system ultrafiltration controller - has two-part housing with membrane clamped between housing parts dividing internal chamber |
| JP3261511B2 (en) * | 1993-02-22 | 2002-03-04 | 株式会社メテク | Diafiltration equipment |
| DE102014109369A1 (en) * | 2014-07-04 | 2016-01-07 | B. Braun Avitum Ag | dialysis machine |
-
2017
- 2017-02-22 CN CN201710097091.9A patent/CN106902408B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1569265A (en) * | 2004-04-23 | 2005-01-26 | 暨南大学 | Method and apparatus for dialysate preparation and supply |
| CN1872357A (en) * | 2006-04-28 | 2006-12-06 | 重庆山外山科技有限公司 | Capacitance balance and ultrafiltration equipment in use for blood purification |
| CN102908685A (en) * | 2012-07-26 | 2013-02-06 | 重庆山外山科技有限公司 | Balance cavity control system for hemodialysis machine |
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| CN106902408A (en) | 2017-06-30 |
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