CN101439207B - Plunger metering pump for purifying blood - Google Patents
Plunger metering pump for purifying blood Download PDFInfo
- Publication number
- CN101439207B CN101439207B CN2008102372272A CN200810237227A CN101439207B CN 101439207 B CN101439207 B CN 101439207B CN 2008102372272 A CN2008102372272 A CN 2008102372272A CN 200810237227 A CN200810237227 A CN 200810237227A CN 101439207 B CN101439207 B CN 101439207B
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- plunger
- hole
- pump housing
- centre bore
- connector
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- 239000008280 blood Substances 0.000 title claims abstract description 20
- 210000004369 blood Anatomy 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims description 9
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 abstract description 8
- 239000000919 ceramic Substances 0.000 abstract description 5
- 238000000746 purification Methods 0.000 abstract description 2
- 239000000385 dialysis solution Substances 0.000 description 14
- 238000001631 haemodialysis Methods 0.000 description 9
- 230000000322 hemodialysis Effects 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 238000000108 ultra-filtration Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000000502 dialysis Methods 0.000 description 4
- 238000005213 imbibition Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000009304 Acute Kidney Injury Diseases 0.000 description 1
- 208000037157 Azotemia Diseases 0.000 description 1
- 208000033626 Renal failure acute Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 201000011040 acute kidney failure Diseases 0.000 description 1
- 208000012998 acute renal failure Diseases 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000020832 chronic kidney disease Diseases 0.000 description 1
- 208000022831 chronic renal failure syndrome Diseases 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- CEIZFXOZIQNICU-UHFFFAOYSA-N tenuazonic acid Chemical compound CCC(C)C1NC(=O)C(C(C)=O)=C1O CEIZFXOZIQNICU-UHFFFAOYSA-N 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 208000009852 uremia Diseases 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
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Abstract
The invention discloses a plunger metering pump which is used for blood purification. In the plunger metering pump, an output shaft of a drive motor is fixedly connected with one end of an eccentric shaft, the other end of the eccentric shaft is eccentrically provided with a small eccentric shaft which is connected with the upper end of a plunger fixing sleeve by a connecting rod, and the lower end of the plunger fixing sleeve is fixed with the upper end of a plunger body; the lower end of the plunger body extends in a plunger hole which is vertically arranged on a pump body, a horizontal through hole which runs through the left end face and the right end face is also arranged on the pump body, and the middle part of the horizontal through hole is communicated with the bottom of the plunger hole; and the left end and the right end of the pump body are respectively provided with a water inlet joint and a water drainage joint, wherein, a center hole of the water inlet joint is internally provided with a water inlet check valve, and a center hole of the water drainage joint is internally provided with a water drainage check valve. In the plunger metering pump, intake and discharge of liquid can be easily realized by the up-and-down movement of a ceramic plunger body; as the distance of each up-and-down movement of the ceramic plunger body is precise, the precision of each liquid intake amount and each liquid discharge amount is high, and the plunger metering pump is characterized by simple and reliable structure, easy assembly, small errors, low cost and the like.
Description
Technical field
The present invention relates to a kind of member of blood cleaning equipment, relate in particular to the hemodialysis plunger metering pump, be used for realizing the dehydration of dialysis procedure or the concentrate pump that the configuration dialysis solution is used.
Background technology
Hemodialysis (HD) is a kind of most important pattern of blood purification treatment, and it is that treatment uremia, acute and chronic renal failure are combined the anti-main therapeutic modality with existence of patient in latter stage at present.Because the kidney organ of uremic patient has partially or completely lost urinary function, thus need carry out hemodialysis, and two of hemodialysis mainly act as: 1) remove vivotoxin or correction acid-base balance by the disperse principle of dialysis solution and blood; 2) go out excessive moisture by ultrafiltration system ultrafiltration from blood of human body and tissue fluid.
Hemodialysis apparatus generally need have dialysis solution configuration feature and ultrafiltration dehydrating function for realizing above two purposes.The main component of dialysis solution is: Na
+(140mmol/L), K
+(2.5mmol/L), Mg
2+(1.0mmol/L), Ca
2+(1.5mmol/L), HCO
3 -(35mmol/L) etc., its each ion concentration fundamental sum blood of human body unanimity.The dialysis solution manner of formulation mainly is configured according to certain ratio and reverse osmosis water by acid concentrated solution (A liquid) and alkaline concentrated solution (B liquid), by the qualified dialysis solution of monitoring system monitoring just allow the film of dialyser outside and film in blood remove toxin by dispersion, and the ion concentration in the dialysis solution is very big with the unit amount of liquid relation that sucks acid or alkaline concentrate pump, the slight change of concentrate pump unit interval flow may will influence the variation of dialysate concentration, so require the flow error of concentrated solution dosing pump unit interval of hemodialysis apparatus necessary minimum.
For uremic patient, one time hemodialysis was generally about 4 hours, need be 120～150L with the dialysis solution quantity of blood exchange, and often have only several premium on currency from the human body dehydration, how accurately control also requires very high to the flow accuracy of ultrafiltrate pump unit interval from human body ultrafiltration dehydration.
And the dosing pump that in the past was used to dispose dialysis solution or ultrafiltration dehydration often has the following disadvantages:
1, the dosing pump error is bigger, causes accurately controlling difficulty of dialysate concentration or dehydrating amount;
2, complex structure, difficulty of processing is bigger, and cost is higher.
3, the biology performance of material is bad, and life-time service is easy to wearing and tearing, belongs to easily worn part.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of plunger type metering pump that can accurately control flow in the unit interval for hemodialysis apparatus.
Technical scheme of the present invention is as follows: a kind of plunger metering pump for purifying blood, comprise drive motors, the pump housing and plunger body, its key is: described drive motors is installed on the motor fixing seat, the output shaft of this drive motors is fixedlyed connected with an end of eccentric shaft, both axis are on same straight line, the other end at eccentric shaft is provided with eccentric little axle prejudicially, and the little axle of this off-centre is connected by the upper end of connecting rod with the plunger fixed cover, and the lower end of plunger fixed cover and the upper end of plunger body fix; The lower end of described plunger body is stretched in the plunger hole of vertically offering on the pump housing, also offers the horizontal through hole that connects its left and right sides end face on the pump housing, and the middle part of this horizontal through hole is connected with the bottom of plunger hole; Left and right two ends at the pump housing are installed into water swivel and drainage joint respectively, wherein the centre bore of water supply connector is communicated with the centre bore of drainage joint by the horizontal through hole of the pump housing, in the centre bore of described water supply connector, be installed into water one-way valve, the outside liquid one-way flow in pump housing horizontal through hole of this water inlet check valve control, in the centre bore of described drainage joint, check valve of water drainage is installed, the outside one-way flow of liquid in this check valve of water drainage control pump housing horizontal through hole.
Adopt above technical scheme, drive eccentric shaft and eccentric little axle rotation during the drive motors running, eccentric little axle drives the plunger fixed cover by connecting rod, makes plunger body make rectilinear motion up and down along the vertical plunger hole of the pump housing.When plunger body moves upward, the water inlet one-way valve opens, pump housing horizontal through hole sucks liquid by water supply connector, and check valve of water drainage is closed simultaneously, guarantees that liquid is not to external leakage in the pump housing horizontal through hole; When plunger body moved downward, check valve of water drainage was opened, and by the drainage joint drain, the water inlet closed check valve guarantees that liquid is not to external leakage in the pump housing horizontal through hole.Constantly rotatablely moving of drive motors drives the plunger body up-down alternative motion, thereby realized the continuous imbibition and the discharge opeing of liquid in the pump housing, and each liquid absorption and lifting rate can accurately be controlled.
The upper end of above-mentioned connecting rod is hinged with eccentric little axle, the lower end of connecting rod is stretched in the straight trough of offering plunger fixed cover upper end, the rotation mandrel that upwards wears by the footpath between connecting rod and the plunger fixed cover is connected, matched in clearance between rotation mandrel and the connecting rod has guaranteed that like this connecting rod and rotation mandrel come back rotation and do not occur coming off.
The upper end of above-mentioned connecting rod is sleeved on the eccentric little axle, both matched in clearance, and suit axle sleeve on the eccentric little axle between connecting rod and the eccentric shaft, the outer end of eccentric little axle is installed with the collar spacing to connecting rod.Eccentric little axle departs from eccentric shaft center certain distance, realizes moving up and down of lower end when eccentric shaft is swung back and forth by the little axle of off-centre drivening rod upper end when rotated, and compact conformation, motion are reliable.
For simplified structure, be convenient to install, the above-mentioned pump housing is made up of crosspiece part and perpendicular section part, is
Shape.
The inwall of the plunger hole that vertically distributes on the above-mentioned pump housing offers annular groove, and the plunger seal circle is housed in this annular groove, and this plunger seal circle guarantees plunger body and pump housing good seal performance in the process of sliding up and down, and can not occur leaking.
In order to make the better reliability of more compact structure, moving component, between the above-mentioned pump housing and motor fixing seat, be fixed with connector, the center of this connector offers the through hole that passes for plunger body, and described motor fixing seat offers the through hole that passes through for the plunger fixed cover over against the position of connector centre bore.
The lower end of above-mentioned connector is threaded with perpendicular section part of the pump housing, the upper end of connector is by the transverse slat partial fixing of first screw and square motor fixing seat, and offer the through hole that passes through for the plunger fixed cover on the transverse slat of the motor fixing seat part, the riser of described motor fixing seat is partly installed drive motors by second screw.Above structure is easy for installation, and fixing is good.
Processing for convenience, the centre bore two ends of above-mentioned connector are big, middle little, and the hypomere of this centre bore is a screwed hole, the stage casing of centre bore and plunger body matched in clearance, described plunger fixed cover stretches in the epimere of connector centre bore.
Above-mentioned plunger body is processed by ceramic material, and the plunger body long-term motion can not produce wearing and tearing yet like this, guaranteed imbibition and the discharge opeing precision of unit interval, and the biology performance of ceramic material is better.
Above-mentioned water supply connector and drainage joint all by being threaded on the pump housing, are equipped with first sealing ring between the water supply connector and the pump housing, second sealing ring is housed between the drainage joint and the pump housing.First, second sealing ring guarantees between the joint and the pump housing water-tight, and it is to be installed into water one-way valve and check valve of water drainage for convenience that water supply connector and drainage joint are set, and is easy to be connected with other pipeline.
The invention has the beneficial effects as follows:
1, the ceramics pole cock body moves up and down and is easy to realize the suction and the discharge of liquid because the distance that moves up and down of ceramics pole cock body is accurate at every turn, so the suction of each liquid and output degree of accuracy very high.
2, simple and reliable for structure, be easy to processing and assembling, cost is lower.
3, adopt the ceramics pole cock body, anti-wear performance is good, biology performance is good, so the error that life-time service produces is also minimum.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is a user mode reference diagram of the present invention.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
As shown in Figure 1 and Figure 2, the pump housing 13 is made up of crosspiece part and perpendicular section part, is
Shape.Crosspiece at the pump housing 13 partly offers the horizontal through hole 13a that connects its left and right sides end face, perpendicular section part of the pump housing 13 offers the plunger hole of vertical distribution, this plunger hole and horizontal through hole 13a are perpendicular, and the bottom of plunger hole is connected with the middle part of horizontal through hole 13a, the inwall on plunger hole top also offers annular groove, and plunger seal circle 8 is housed in this annular groove.At the left end of the described pump housing 13 by the water supply connector 9 that has been threaded, the centre bore of this water supply connector 9 connects with the horizontal through hole 13a of the pump housing 13 and is communicated with, and in the centre bore of water supply connector 9, being installed into water one-way valve 10, the liquid of these water inlet check valve 10 control outsides is by water supply connector 9 one-way flow in pump housing horizontal through hole 13a.Between the step surface in water supply connector 9 centre bores and the left side of the pump housing 13 first sealing ring 11 is housed, water-tight to guarantee between the water supply connector 9 and the pump housing 13.
As shown in Figure 1, at the right-hand member of the pump housing 13 by the drainage joint 16 that has been threaded, the centre bore of this drainage joint 16 connects with the horizontal through hole 13a of the pump housing 13 and is communicated with, and check valve of water drainage 15 is installed in the centre bore of drainage joint 16, the liquid in this check valve of water drainage 15 control pump housing horizontal through hole 13a is by drainage joint 16 outside one-way flow.Between the step surface in drainage joint 16 centre bores and the right side of the pump housing 13 second sealing ring 14 is housed, water-tight to guarantee between the drainage joint 16 and the pump housing 13.
As can be known, motor fixing seat 18 is set above the pump housing 13 from Fig. 1, Fig. 2, this motor fixing seat 18 is a square, and the lateral surface of motor fixing seat 18 risers part is installed drive motors 21 by many second screws 19.On the transverse slat part of motor fixing seat 18, offer the through hole that passes through for plunger fixed cover 6, and many first screws of underrun 17 of transverse slat part are fixed with the upper end of connector 7.The center of described connector 7 is porose, the through hole of this centre bore on the motor fixing seat 18 transverse slats parts, and the centre bore of connector 7 two ends up and down is big, middle little, the hypomere of this centre bore is a screwed hole, connector 7 is sleeved on by this screwed hole on the perpendicular section part of the pump housing 13, both threaded engagement.
Further as can be known, the output shaft 20 of drive motors 21 passes the riser part of motor fixing seat 18 from Fig. 1, Fig. 2, and fixedlys connected with an end of eccentric shaft 1, and both axis of output shaft 20 and eccentric shaft 1 are on same straight line.The other end at eccentric shaft 1 is fixed with eccentric little axle 1a prejudicially, and the upper end of connecting rod 4 is sleeved on the little axle of this off-centre 1a, both matched in clearance.Suit axle sleeve 2 on the eccentric little axle 1a between connecting rod 4 and the eccentric shaft 1, the outer end of eccentric little axle 1a are installed with the collar 3 spacing to connecting rod 4.The lower end of described connecting rod 4 is stretched in the straight trough of offering plunger fixed cover 6 upper ends, and the rotation mandrel 5 that upwards wears by the footpath between connecting rod 4 and the plunger fixed cover 6 is connected matched in clearance between rotation mandrel 5 and the connecting rod 4.The through hole on the motor fixing seat 18 transverse slats part is passed in the lower end of described plunger fixed cover 6, and stretches in the epimere of connector 7 centre bores, and the lower end of plunger fixed cover 6 is solidly set on the upper end of plunger body 12.Described plunger body 12 is processed by ceramic material, and the stage casing of connector 7 centre bores is passed in the lower end of plunger body 12, extend in the plunger hole on the pump housing 13, and can vertically extend in the horizontal through hole 13a of the pump housing 13 always.The stage casing matched in clearance of described plunger body 12 and connector 7 centre bores,
Operation principle of the present invention is:
Referring to Fig. 1, Fig. 2, drive motors 21 drives eccentric shaft 1 rotation, the top of the eccentric little axle 1a drivening rod 4 on the eccentric shaft 1 swings back and forth, and the bottom of this connecting rod 4 drives plunger fixed cover 6 and does up and down motion repeatedly, makes plunger body 12 move repeatedly up and down in the plunger hole of the pump housing 13.When plunger body 12 moves upward, can produce negative pressure in the horizontal through hole 13a of the pump housing 13, cause into water check valve 10 to be opened, going out water one-way valve 15 closes because of position opposite, so outside liquid is inhaled in the pump housing 13 by water supply connector 9, when plunger body 12 arrived topmost, the imbibition process was finished; When plunger body 12 moves downward, can produce malleation in the horizontal through hole 13a of the pump housing 13, cause water one-way valve 15 to be opened, water inlet check valve 10 is closed because of position opposite, so the liquid in the pump housing 13 discharges by drainage joint 16.Constantly rotatablely moving of drive motors 21 drives plunger body 12 up-down alternative motions, thereby realized the continuous imbibition and the discharge opeing of liquid in the pump housing 13, and each liquid absorption and lifting rate can accurately be controlled.In whole process, plunger seal circle 8, first sealing ring 11, second sealing ring 14 guarantee not occur in the pump housing 13 leaking.
As shown in Figure 3, water for dialysis need mix with A concentrated solution (acid solution) and B concentrated solution (alkali liquor), form dialysis solution, enter dialyser 23 (purpose of bascule 22 is that the dialysis solution and the waste liquid that guarantee turnover dialyser 23 keep liquid amount balance at any time) by bascule 22 then, become waste liquid after blood in dialysis solution and the dialyser 23 exchanges, discharge by bascule 22 again.The present invention is used for A concentrated solution (acid solution) and B concentrated solution (alkali liquor) are pumped into water for dialysis, forms qualified dialysis solution, is transported in the dialyser 23 by bascule 22 again.Owing to can accurately control into and out of fluid flow of the present invention, the concentration of such dialysis solution that disposes also can accurately be controlled, thereby has ensured the safety of dialysis treatment.In like manner, when the present invention is used for the human body dehydration, also can accurately control dehydrating amount.
Claims (8)
1. plunger metering pump for purifying blood, comprise drive motors (21), the pump housing (13) and plunger body (12), it is characterized in that: described drive motors (21) is installed on the motor fixing seat (18), the output shaft (20) of this drive motors (21) is fixedlyed connected with an end of eccentric shaft (1), the axis of the output shaft of drive motors (21) and the axis of eccentric shaft are on same straight line, the other end at eccentric shaft (1) is provided with eccentric little axle (1a) prejudicially, the upper end of connecting rod (4) is sleeved on the eccentric little axle (1a), both matched in clearance, eccentric little axle (1a) between connecting rod (4) and eccentric shaft (1) is gone up suit axle sleeve (2), the outer end of eccentric little axle (1a) is installed with the collar (3) spacing to connecting rod (4), the lower end of connecting rod (4) is stretched in the straight trough of offering plunger fixed cover (6) upper end, be connected by the rotation mandrel (5) that radially wears between connecting rod (4) and the plunger fixed cover (6), the upper end of the lower end of plunger fixed cover (6) and plunger body (12) fixes; The lower end of described plunger body (12) is stretched in the plunger hole of vertically offering on the pump housing (13), also offers the horizontal through hole (13a) that connects its left and right sides end face on the pump housing (13), and the middle part of this horizontal through hole (13a) is connected with the bottom of plunger hole; Left side in the pump housing (13), right two ends are installed into water swivel (9) and drainage joint (16) respectively, the centre bore of wherein water supply connector (9) is communicated with the centre bore of drainage joint (16) by the horizontal through hole (13a) of the pump housing (13), in the centre bore of described water supply connector (9), be installed into water one-way valve (10), the outside liquid one-way flow in the horizontal through hole (13a) of the pump housing of this water inlet check valve (10) control, check valve of water drainage (15) is installed, the outside one-way flow of liquid in the horizontal through hole (13a) of this check valve of water drainage (15) control pump housing in the centre bore of described drainage joint (16).
2. plunger metering pump for purifying blood according to claim 1 is characterized in that: the described pump housing (13) is made up of crosspiece part and perpendicular section part, is
Shape.
3. plunger metering pump for purifying blood according to claim 1 and 2 is characterized in that: the inwall of going up the plunger hole that vertically distributes at the described pump housing (13) offers annular groove, and plunger seal circle (8) is housed in this annular groove.
4. plunger metering pump for purifying blood according to claim 1, it is characterized in that: between the described pump housing (13) and motor fixing seat (18), be fixed with connector (7), the center of this connector (7) offers the centre bore that passes for plunger body (12), and described motor fixing seat (18) offers the through hole that passes through for plunger fixed cover (6) over against the position of connector (7) centre bore.
5. plunger metering pump for purifying blood according to claim 4, it is characterized in that: the lower end of described connector (7) is threaded with perpendicular section part of the pump housing (13), the upper end of connector (7) is by the transverse slat partial fixing of first screw (17) with square motor fixing seat (18), and offer the through hole that passes through for plunger fixed cover (6) on the transverse slat of motor fixing seat (18) part, the riser of described motor fixing seat (18) is partly installed drive motors (21) by second screw (19).
6. plunger metering pump for purifying blood according to claim 4, it is characterized in that: the centre bore two ends of described connector (7) are big, middle little, the hypomere of this centre bore is a screwed hole, the stage casing of centre bore and plunger body (12) matched in clearance, described plunger fixed cover (6) stretches in the epimere of connector (7) centre bore.
7. according to claim 1 or 4 or 6 described plunger metering pump for purifying blood, it is characterized in that: described plunger body (12) is processed by ceramic material.
8. plunger metering pump for purifying blood according to claim 1, it is characterized in that: described water supply connector (9) and drainage joint (16) are all by being threaded on the pump housing (13), between the water supply connector (9) and the pump housing (13), first sealing ring (11) is housed, between the drainage joint (16) and the pump housing (13), second sealing ring (14) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102372272A CN101439207B (en) | 2008-12-23 | 2008-12-23 | Plunger metering pump for purifying blood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102372272A CN101439207B (en) | 2008-12-23 | 2008-12-23 | Plunger metering pump for purifying blood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101439207A CN101439207A (en) | 2009-05-27 |
| CN101439207B true CN101439207B (en) | 2011-08-10 |
Family
ID=40723905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102372272A Active CN101439207B (en) | 2008-12-23 | 2008-12-23 | Plunger metering pump for purifying blood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101439207B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067482A (en) * | 1991-06-04 | 1992-12-30 | 陈耀辉 | Multipurpose pump for aeration and liquid suction |
| CN2202198Y (en) * | 1993-11-02 | 1995-06-28 | 汪大鹏 | Multi-functional air-liquid pump |
| CN1799652A (en) * | 2005-10-08 | 2006-07-12 | 韩国纽哈特生物有限公司 | Throbbing blood stream type blood pump device for heart and lung |
| CN1899630A (en) * | 2006-06-26 | 2007-01-24 | 重庆山外山科技有限公司 | Ceramic pump for blood purifying |
| CN101138658A (en) * | 2007-09-06 | 2008-03-12 | 上海交通大学 | Electric-liquid type heart extracorporeal circulation pulsatory blood pump |
| CN201320319Y (en) * | 2008-12-23 | 2009-10-07 | 重庆山外山科技有限公司 | Plunger metering pump for blood purification |
-
2008
- 2008-12-23 CN CN2008102372272A patent/CN101439207B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067482A (en) * | 1991-06-04 | 1992-12-30 | 陈耀辉 | Multipurpose pump for aeration and liquid suction |
| CN2202198Y (en) * | 1993-11-02 | 1995-06-28 | 汪大鹏 | Multi-functional air-liquid pump |
| CN1799652A (en) * | 2005-10-08 | 2006-07-12 | 韩国纽哈特生物有限公司 | Throbbing blood stream type blood pump device for heart and lung |
| CN1899630A (en) * | 2006-06-26 | 2007-01-24 | 重庆山外山科技有限公司 | Ceramic pump for blood purifying |
| CN101138658A (en) * | 2007-09-06 | 2008-03-12 | 上海交通大学 | Electric-liquid type heart extracorporeal circulation pulsatory blood pump |
| CN201320319Y (en) * | 2008-12-23 | 2009-10-07 | 重庆山外山科技有限公司 | Plunger metering pump for blood purification |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101439207A (en) | 2009-05-27 |
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Denomination of invention: Plunger metering pump for purifying blood Effective date of registration: 20120802 Granted publication date: 20110810 Pledgee: Chongqing Sanxia bank Limited by Share Ltd New District Branch Pledgor: Gao Guangyong|Chongqing Shanwaishan science and Technology Co Ltd Registration number: 2012990000422 |
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Date of cancellation: 20130820 Granted publication date: 20110810 Pledgee: Chongqing Sanxia bank Limited by Share Ltd New District Branch Pledgor: Gao Guangyong|Chongqing Shanwaishan science and Technology Co Ltd Registration number: 2012990000422 |
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Denomination of invention: Plunger metering pump for purifying blood Effective date of registration: 20130820 Granted publication date: 20110810 Pledgee: Chongqing Sanxia bank Limited by Share Ltd New District Branch Pledgor: Gao Guangyong|Chongqing Shanwaishan science and Technology Co Ltd Registration number: 2013990000593 |
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Date of cancellation: 20150203 Granted publication date: 20110810 Pledgee: Chongqing Sanxia bank Limited by Share Ltd New District Branch Pledgor: Gao Guangyong|Chongqing Shanwaishan science and Technology Co Ltd Registration number: 2013990000593 |
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Denomination of invention: Plunger metering pump for purifying blood Effective date of registration: 20150205 Granted publication date: 20110810 Pledgee: Chongqing Sanxia bank Limited by Share Ltd New District Branch Pledgor: Gao Guangyong|Chongqing Shanwaishan science and Technology Co Ltd Registration number: 2015990000104 |
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Inventor after: Gao Guangyong Inventor after: Ren Yingxiang Inventor before: Gao Guangyong Inventor before: Teng Chaoyu Inventor before: Ren Yingxiang |
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Address after: The 401121 northern New District of Chongqing municipality Mount Huangshan Road No. 5 South Building Mercury Technology Development Center Patentee after: SWS HEMODIALSIS CARE CO., LTD. Address before: 2, H building, No. three, No. 67, 400041 Garden Road, Chongqing hi tech Zone Patentee before: Chongqing Shanwaishan Science & Technology Co., Ltd. |
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Date of cancellation: 20160531 Granted publication date: 20110810 Pledgee: Chongqing Sanxia bank Limited by Share Ltd New District Branch Pledgor: SWS HEMODIALSIS CARE CO., LTD. Registration number: 2015990000104 |
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Change date: 20160531 Registration number: 2015990000104 Pledgor after: Chongqing Shanwaishan Science & Technology Co., Ltd. Pledgor before: Gao Guangyong Pledgor before: Chongqing Shanwaishan science and Technology Co Ltd |
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Denomination of invention: Plunger metering pump for purifying blood Effective date of registration: 20170310 Granted publication date: 20110810 Pledgee: Export Import Bank of China Pledgor: SWS HEMODIALSIS CARE CO., LTD. Registration number: 2017980000035 |
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Address after: 401123 Tzu Chi Road, Liangjiang New Area, Chongqing, No. 1 Patentee after: SWS HEMODIALSIS CARE CO., LTD. Address before: The 401121 northern New District of Chongqing municipality Mount Huangshan Road No. 5 South Building Mercury Technology Development Center Patentee before: SWS HEMODIALSIS CARE CO., LTD. |
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Date of cancellation: 20210129 Granted publication date: 20110810 Pledgee: Export Import Bank of China Pledgor: SWS HEMODIALYSIS CARE Co.,Ltd. Registration number: 2017980000035 |