CN101219243B - Stepless adjustable vasomotion pulsation blood pump with synchronous externally controlled valve - Google Patents
Stepless adjustable vasomotion pulsation blood pump with synchronous externally controlled valve Download PDFInfo
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- CN101219243B CN101219243B CN2008100259222A CN200810025922A CN101219243B CN 101219243 B CN101219243 B CN 101219243B CN 2008100259222 A CN2008100259222 A CN 2008100259222A CN 200810025922 A CN200810025922 A CN 200810025922A CN 101219243 B CN101219243 B CN 101219243B
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Abstract
The invention relates to a stepless adjustable and systaltic pulsatile blood pump with a synchronous valve of external control, which comprises a main diving wheel, a slide block for power transmission, an analogous conical pump pipe, a galeiform squeezer for the pump pipe, a regulator for swinging scope of briquettings, a combination of upper and lower valves for the pump pipe, a valve switch control and an auxiliary bracket of components; the synchronous valve of external control is arranged on a support structure of the combination of upper and lower valves for the pump pipe and the valve switch control; a galeiform end of the galeiform squeezer for the pump pipe contacts with a conical pump pipe, the other end is arranged on a bracket; the regulator for swinging scope of briquettings is arranged on the galeiform squeezer for the pump pipe which is connected with the main driving wheel passing through the slide block for power transmission by an adjusting and pushing plate. The invention adopts a unique model and squeezing method of the pump pipe, which can improve efficiency and reduce destruction to blood components, while the design of the synchronous valve of external control can reduce the opportunities of blood stream consumption and thrombus formation; the pump pipe uses disposable materials and has simple production process and low cost.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly a kind of stepless adjustable formula pulsatory blood pump that contracts that relaxes with synchronous external control valve.
Background technology
Abroad, some countries are being studied conveniently in recent years, safe and effective multi-function device, and the donor's heart that makes heart transplantation is preserved under for heart beating heart under more approaching physiological state.As in 2003, the medical expert of Texas, USA San Antonio Spurs university has invented a kind of portable organ saved system, can prolong the time-to-live of offering organs for transplant, they have utilized the heart of pig to test, and have successfully made its time-to-live be extended to 23 hours.In June, 2006, the machine that is called as organ care system (Organ Care System) that the doctor of the general Butterworth of Cambridge, Britain handkerchief hospital has used the U.S. " transplantation medicine company (TransMedics) " to manufacture and design in a heart transplant operation, after transplanted heart took out in donor's body, this machine can keep beating of transplanted heart.
The medical apparatus and instruments that the present invention intends developing, mainly be to be the supporting core component of the similar scientific research project of ongoing and external the above research of present inventor " organ of simulation donor physiological environment is safeguarded saved system ", these parts also can be used for being developed to medical apparatus and instruments such as novel artificial heart-lung machine, external membrane lung supportive device, ventricular assist device simultaneously.External above-mentioned investigative technique mainly is designed for preserving transplanted heart, thereby the injection pressure of this system core parts-blood pump and perfusion blood flow are mainly adjustable in being fit to the scope that heart physiological requires, because of heart itself has the function of beating, the designed blood pump of the external above-mentioned investigative technique function of also not beating.The scientific research project that present inventor's plan is carried out " organ of simulation donor physiological environment is safeguarded saved system " will be used for the external preservation of heart, lungs, liver, kidney.Thereby require designed blood pump can produce injection pressure and the meticulous adjustable blood flow of flow, simultaneously for more near the former physiology environment of donor, this perfusion blood flow is preferably the adjustable pulsatile flow of the amplitude of beating.External existing is the blood pump of above-mentioned institute design, is not best choice being used for aspect the heart internal organs perfusion preservation in addition.In addition, the beat meticulous inadequately shortcoming of scalable degree of amplitude and pressure of domestic and international existing other various blood pumps that can produce pulsatile flow, ubiquity can not be common to the perfusion of Different Organs.Built-in valve designs technology commonly used also has and is easy to generate thrombosis and stops that blood flow increases the shortcoming of energy consumption, is unfavorable for long turn of tidal stream perfusion and has complex manufacturing technology, problem that manufacturing cost is high.
Summary of the invention
The present invention is directed in the prior art the long-time perfusion needs that blood pump commonly used can not fine adaptation Different Organs, and destroy blood constituent easily and produce thrombosis, with the high problem of pump line complex manufacturing technology, the manufacturing cost of built-in valve, provide a kind of stepless adjustable formula pulsatory blood pump that contracts that relaxes with synchronous external control valve.
The present invention can be achieved by the following technical programs: a kind of stepless adjustable formula pulsatory blood pump that contracts that relaxes with synchronous external control valve, comprise main drive wheel, the transmission of power slide block, the conical pump line of class, helmet shape pump line squeezer, briquetting amplitude of fluctuation actuator, the outer upper and lower valve combination of pump line, valve switch control, and the accessory holder of parts; The conical pump line of described class is placed on the supporting construction of outer upper and lower valve combination of pump line and valve switch control, the helmet shape end of described helmet shape pump line squeezer contacts with conical pump line, its other end is rack-mount, described briquetting amplitude of fluctuation actuator places on the helmet shape pump line squeezer, and by regulating push plate the pump line squeezer is joined through transmission of power slide block and main drive wheel.
In the present invention, described main drive wheel comprises rotating disk; Equidistantly distributed three blades on the described rotating disk, and a runner that can rotate around the blade central shaft is respectively arranged on three blades, the vertical section of runner is a circular arc type; Three blade profile projections that rotate with the rotating disk concentric are arranged at described rotating disk bottom.
Described transmission of power slide block comprises slider body; One end of described slider body is shaped as semicircle, and its other end is a del, and the del end is equipped with the cylinder type trundle; The fenestrate bodily form drive block in described slider body below, right side forms shape drive block also have cuboid to prolong piece outward.
The conical pump line of described class comprises the pump line main body, and this pump line main body is that the bottom is roomy, the diminishing pyramidal structure in top is relaxed the chamber of contracting.
Described helmet shape pump line squeezer comprises the crushing block and the bow template of the similar steel helmet shape of outer surface, one end of described cambered plate links to each other with the crushing block bottom surface at close center of gravity place with the angle of inclination and forms curved boom, the other end of curved boom forms cylindrical shape joint axle sleeve, and the centre of curved boom has a groove; On the described cambered plate back of a bow cuboid push plate is installed, one side of push plate becomes cylindrical shape, and is installed on by a cylindrical transverse axis on two axle beds of the back of a bow of cambered plate.
Described crushing block amplitude of fluctuation actuator comprises toxoplasma; Described toxoplasmatic front end positioned vertical has rotatable cylindrical support core, and its tail end forms cylinder; Described cylinder periphery has the cylindrical shape axle sleeve, and the axle sleeve external fixation is connected to the cuboid connecting rod, the connecting rod of both sides is vertical affixed with a cuboid plate, and there is a fine and close internal thread hole at the center of cuboid plate, and the cuboid plate has knob and the knob support that contains the external thread rod structure outward.
The outer upper and lower valve combination of described bilateral pump line comprises the card body of the cranking arm of a pair of symmetrical structure of every side and the cylinder bodily form, described two crank arm in the coaxial phase embedding of mid point, and crank arm two ends and axle center equality upward to thickening structure in echelon, respectively be provided with a cylinder axis on the trapezium structure, be with the card body of the cylinder bodily form on the axle, the mid point of card body one side of each cylinder bodily form fixedly is equipped with a transverse axis, swinging strength is installed on the axle strengthens piece, strengthen piece one end drop-down spring is installed, each other end that strengthens piece is installed on the spring bearing of support.
Described outer valve switch control comprises a cuboid, described cuboid is equipped with two pairs of cylinders near place, two diagonal angles, the axle ditch that one capsule shape is arranged in the middle of the cuboid, the cuboid middle part is equipped with a cuboid pushing block, respectively there are two cylinders the pushing block both sides, and pushing block one side contacts with forms shape drive block or forms shape drive block cuboid outward.
Compared with prior art, the present invention has the following advantages:
One, pulsatory blood pump of the present invention can produce the adjustable pulsatile flow of 10-180mmHg pressure, can adapt to Different Organs perfusion requirement;
Two, the fashion of extrusion of the pump line moulding of uniqueness of the present invention and pump line can improve usefulness, and can reduce the destruction to blood constituent, can adapt to long running;
Three, the present invention adopts the design of synchronous external control valve to replace the function of interior valve, can make the pump line inwall keep smooth, reduces the chance that blood flow energy consumption and thrombosis produce;
Four, the present invention does not adopt built-in valve structure in pump line, makes processing technology simple, and manufacturing cost reduces, and helps applying.
Description of drawings
Fig. 1 is an overall structure sketch map of the present invention;
Fig. 2 is the structure chart of main drive wheel of the present invention;
Fig. 3 is the structure chart of left side of the present invention transmission of power slide block;
Fig. 4 is the structure chart of right side of the present invention transmission of power slide block;
Fig. 5 is the structure chart of the conical pump line of class of the present invention;
Fig. 6 is the structure chart of helmet shape pump line crushing block of the present invention;
Fig. 7 is the structure chart of crushing block amplitude of fluctuation actuator of the present invention;
Fig. 8 is the partial structurtes figure of crushing block amplitude of fluctuation actuator of the present invention;
Fig. 9 is the sketch map of bilateral amplitude of fluctuation actuator of the present invention when being in the maximal regulated state;
Figure 10 is the sketch map of bilateral amplitude of fluctuation actuator of the present invention when being in the minimal adjustment state;
Figure 11 is the structure chart of the outer upper and lower valve combination of pump line of the present invention;
Figure 12 is the structure chart of the outer valve switch control of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.
As shown in Figure 1, a kind of stepless adjustable formula pulsatory blood pump that contracts that relaxes of the present invention with synchronous external control valve, comprise main drive wheel 1, transmission of power slide block 2, the conical pump line 3 of class, helmet shape pump line squeezer 4, briquetting amplitude of fluctuation actuator 5, the outer upper and lower valve combination 6 of pump line, the accessory holder 8 of valve switch control 7 and parts; The conical pump line 3 of described class is placed on the supporting bracket 8-1 of outer upper and lower valve combination 6 of pump line and valve switch control 7; The helmet shape end of described helmet shape pump line squeezer 4 contacts with conical pump line 3, its other end is installed on the support 8-2, described briquetting amplitude of fluctuation actuator 5 places on the helmet shape pump line squeezer 4, and by regulating push plate pump line squeezer 4 is joined through transmission of power slide block 2 and main drive wheel 4.
As shown in Figure 2, main drive wheel 1 of the present invention comprises rotating disk 1-1; Three blade 1-2 have been equidistantly distributed on the described rotating disk 1-1, and a runner 1-3 that can rotate around the blade central shaft is arranged respectively on three blade 1-2, the vertical section of runner 1-3 is a circular arc type, and this circular arc type makes the class semicircle profile of runner and transmission of power slide block one end uneven; Three blade profile projection 1-4 that rotate with rotating disk 1-1 concentric are arranged at described rotating disk 1-1 bottom, and the outer valve switch control of the curved surface at blade profile projection edge shake-up makes outer valve do the synchronous on-off action during rotation.
To shown in Figure 4, transmission of power slide block 2 of the present invention comprises slider body 2-1 as Fig. 3; The end of described slider body 2-1 is shaped as semicircle, and its other end is a del, and the del end is equipped with cylinder type trundle 2-2; The described slider body 2-1 fenestrate bodily form drive block 2-3 in below, the shape size of the drive block 2-3 of the left and right sides has difference, and right side forms shape drive block 2-3 also has cuboid to prolong piece 2-4 outward.
As shown in Figure 5, the conical pump line 3 of class of the present invention comprises the pump line main body, and this pump line main body is that the bottom is roomy, the diminishing pyramidal structure in top is relaxed the chamber of contracting, and the pump line inwall at the easypro two ends, chamber of contracting keeps streamlined seamlessly transitting.
Extremely shown in Figure 10 as Fig. 6, helmet shape pump line squeezer 4 of the present invention comprises the crushing block 4-1 and the bow template 4-2 of the similar steel helmet shape of outer surface, the end of described cambered plate 4-2 links to each other with the crushing block 4-1 bottom surface at close center of gravity place with the angle of inclination and forms curved boom, the other end of curved boom forms cylindrical shape joint axle sleeve 4-3, the centre of curved boom has a groove 4-4,3/4ths groove near briquetting is narrow and small, and 1/4th the groove that contains the joint axle sleeve is roomy, and this groove can make the actuator of regulating pump line crushing block amplitude of fluctuation slide within it; Cuboid push plate 4-6 is installed on the described cambered plate back of a bow, and one side of push plate 4-6 becomes cylindrical shape, and is installed on by a cylindrical transverse axis on the two axle bed 4-5 of the back of a bow of cambered plate 4-2.
Described crushing block amplitude of fluctuation actuator 5 comprises toxoplasma 5-1; The front end positioned vertical of described toxoplasma 5-1 has rotatable cylindrical support core 5-2, and its tail end forms cylinder 5-3; Described cylinder 5-3 periphery has cylindrical shape axle sleeve 5-4, toxoplasma is that the axle center can swing in axle sleeve with the cylinder, and axle sleeve 5-4 external fixation is connected to cuboid connecting rod 5-5, the connecting rod of both sides is vertical affixed with a cuboid plate 5-6, there is a fine and close internal thread hole 5-7 at the center of cuboid plate 5-6, cuboid plate 5-6 has knob and the knob support 8-3 that contains the external thread rod structure outward, angle during the turn knob between scalable push plate 4-6 and the crushing block 4-1, thereby change the amplitude of fluctuation of crushing block 4-1, make briquetting increase or reduce the crushing strength of pump line.
As shown in figure 11, the outer upper and lower valve combination of bilateral pump line of the present invention comprises the card body 6-2 of the crank arm 6-1 and the cylinder bodily form of a pair of symmetrical structure of every side, described two crank arm 6-1 in the coaxial phase embedding of mid point, both swing relatively around axle, and crank arm two ends and axle center equality form trapezium structure 6-7 to thickening gradually upward, respectively be provided with a cylinder axis 6-3 on the trapezium structure 6-7, be with the card body 6-2 of the cylinder bodily form on the axle, the card body 6-2 of two pairs of cylinders serves as that axle is done fan-shaped relative swing with the 6-1 mid point of cranking arm; The mid point of card body 6-2 one side of each cylinder bodily form fixedly is equipped with a transverse axis 6-4, it is that the oval-shaped swinging strength of class strengthens piece 6-5 that positive side switch is installed on the axle, an end that strengthens piece 6-5 loads and draws spring 6-6, and each other end that strengthens piece 6-5 is installed on the spring bearing of support 8-1.
As shown in figure 12, outer valve switch control of the present invention comprises a cuboid 7-1, described cuboid 7-1 is equipped with two couples of cylinder 7-2 near place, two diagonal angles, every pair of cylinder spacing is the width that X-shaped is cranked arm, thereby cuboid is when laterally moving back and forth, the two couples of cylinder 7-2 X-shaped 6-1 that cranks arm that fiddles with cooperates swinging strength to strengthen piece 6-5 and drop-down spring 6-6, make the card body that forms outer valve pump line be squeezed with the elastic recovery process in make synchronous opening and closing movement; The axle ditch 7-3 that one capsule shape is arranged in the middle of the cuboid, the cuboid middle part is equipped with a cuboid pushing block 7-4, respectively there are two cylinder 7-5 the pushing block both sides, and contact with forms shape drive block 2-3 pushing block one side and forms shape drive block 2-3 or the outer cuboid of forms shape drive block of pushing block one side prolongs piece 2-4 and contact.This forms shape drive block 2-3 is touched by the curved surface that main drive wheel rotating disk 1-1 goes up three blade profile projection 1-4 edges of concentric rotation, and the cuboid pushing block is moved back and forth.
Operation principle of the present invention is as follows: by strengthening the dynamics of the flexible extruding of briquetting pump line gradually, generation puts on the pressure of pump line inner blood, blood is flowed to the pump line outlet, at once remove extruding subsequently to pump line, allow pump line utilize the elastical retraction power of self to restore to the original state, produce negative pressure in the pump line and attract blood to enter pump line, so go round and begin again, thereby simulated the duty of the contraction and the diastole of ventricle.Pump line divides the left and right sides, the pump line of both sides the hocket extruding and the action of vacuum suction, thus produce continual pulsatile flow.
Work process of the present invention is as follows: linked to each other with the main driving wheel center by brushless direct current motor, the rotating disk uniform rotation of motor drives main driving wheel, on the rotating disk of main drive wheel, equidistantly distribute three leaves, three runners that can rotate around the leaf central shaft are arranged on three leaves, when runner concave surface on the leaf margin contacts with the semi-circular convex surface of class of transmission of power slide block one end, begin to promote slide block and at the uniform velocity slide, and slide block promotes briquetting and presses to pump line, forms the flexibility extruding that pump line is strengthened gradually to a side.After runner turns over certain angle, disengage with slide block, slide block is removed the extruding to pump line at once by back-moving spring elastic force returning quickly.Owing to the runner uniform distribution on three leaves, pump line on the left of making is when extruding, the pump line on right side just in time is in the squeezed state of releasing to pump line, thereby the both sides pump line is hocketed, and simulation is shunk and the action of diastole, makes pump line interior blood flow in both sides converge behind valve and forms continual pulsatile flow.Three blade profile projections that rotate with the rotating disk concentric are arranged at the rotating disk bottom, and the outer valve switch control of the curved surface at blade profile projection edge shake-up makes outer valve do the synchronous on-off action during rotation, and in like manner, the outer valve opening and closing movement of the left and right sides also hockets.Because crushing block has unique shape-designing, make on the crushing block surface of fan-shaped swing each point press to pump line with angle separately, crushing block surface action point angle maximum near lower valve, crushing block surface action point angle minimum away from valve, this design makes briquetting when extruding stop that to blood flow is mobile influence reduces as far as possible, makes blood flow flow smooth and easy to moving towards identical direction with pump line.
This blood pump is driven by the brushless direct current motor that power is about 80W, through the change speed gear box speed change, produces 0-120 rev/min adjustable rotating speed, the blood flow 10ml-50ml that each rotation period extruding pump line produces; Maximum blood flow 6L/min can produce the pulsatile flow of 10-180mmHg adjustable pressure.
Claims (10)
1. stepless adjustable formula pulsatory blood pump that contracts that relaxes with synchronous external control valve, it is characterized in that: comprise main drive wheel (1), transmission of power slide block (2), the conical pump line (3) of class, helmet shape pump line squeezer (4), briquetting amplitude of fluctuation actuator (5), the outer upper and lower valve combination (6) of pump line, valve switch control (7) and accessory holder (8); The conical pump line of described class (3) is placed on the supporting bracket (8-1) of outer upper and lower valve combination (6) of pump line and valve switch control (7), the helmet shape end of described helmet shape pump line squeezer (4) contacts with the conical pump line of class (3), its other end is installed on first support (8-2), described briquetting amplitude of fluctuation actuator (5) places on the helmet shape pump line squeezer (4), and by regulating push plate (4-6) helmet shape pump line squeezer is joined through transmission of power slide block (2) and main drive wheel (1).
2. the stepless adjustable formula pulsatory blood pump that contracts that relaxes according to claim 1, it is characterized in that: described main drive wheel (1) comprises rotating disk (1-1); Equidistantly distributed three blades (1-2) on the described rotating disk (1-1), and a runner (1-3) that can rotate around the blade central shaft has respectively been arranged on three blades (1-2); Three the blade profile projections (1-4) that rotate with rotating disk (1-1) concentric are arranged at described rotating disk (1-1) bottom.
3. the stepless adjustable formula pulsatory blood pump that contracts that relaxes according to claim 2, it is characterized in that: the vertical section of described runner (1-3) is a circular arc type.
4. the stepless adjustable formula pulsatory blood pump that contracts that relaxes according to claim 1, it is characterized in that: described transmission of power slide block (2) comprises slider body (2-1); One end of described slider body (2-1) is shaped as semicircle, and its other end is a del, and the del end is equipped with cylinder type trundle (2-2); Described slider body (2-1) below fenestrate bodily form drive block (2-3), the shape of the forms shape drive block (2-3) of the left and right sides and size have different, and right side forms shape drive block (2-3) is outer to also have cuboid to prolong piece (2-4).
5. the stepless adjustable formula pulsatory blood pump that contracts that relaxes according to claim 1, it is characterized in that: the conical pump line of described class (3) comprises the pump line main body, this pump line main body is that the bottom is roomy, the diminishing pyramidal structure in top is relaxed the chamber of contracting.
6. the stepless adjustable formula pulsatory blood pump that contracts that relaxes according to claim 1, it is characterized in that: described helmet shape pump line squeezer (4) comprises the crushing block (4-1) and the cambered plate (4-2) of the similar steel helmet shape of outer surface, one end of described cambered plate (4-2) links to each other with crushing block (4-1) bottom surface at close center of gravity place with the angle of inclination and forms curved boom, the other end of curved boom forms cylindrical shape joint axle sleeve (4-3), and cylindrical shape joint axle sleeve (4-3) is installed on the circular shaft of first support (8-2); The centre of curved boom has a groove (4-4); Cuboid push plate (4-6) is installed on the back of a bow of described cambered plate, and one side of cuboid push plate (4-6) becomes cylindrical shape, and is installed on by a cylindrical transverse axis on two axle beds (4-5) of the back of a bow of cambered plate (4-2).
7. the stepless adjustable formula pulsatory blood pump that contracts that relaxes according to claim 1, it is characterized in that: described briquetting amplitude of fluctuation actuator comprises toxoplasma (5-1); The front end positioned vertical of described toxoplasma (5-1) has rotatable cylindrical support core (5-2), and its tail end forms cylinder (5-3); Described cylinder (5-3) periphery has cylindrical shape axle sleeve (5-4), and cylindrical shape axle sleeve (5-4) external fixation is connected to cuboid connecting rod (5-5), and the connecting rod of the left and right sides is vertical affixed with a cuboid plate (5-6).
8. the stepless adjustable formula pulsatory blood pump that contracts that relaxes according to claim 7, it is characterized in that: there is a fine and close internal thread hole (5-7) at the center of described cuboid plate (5-6), and knob and the knob support (8-3) that contains the external thread rod structure arranged outside the cuboid plate (5-6).
9. the stepless adjustable formula pulsatory blood pump that contracts that relaxes according to claim 1, it is characterized in that: on the described pump line of bilateral is outer, the lower valve combination comprises the card body (6-2) of the cranking arm (6-1) of a pair of symmetrical structure of every side and the cylinder bodily form, described cranking arm (6-1) is in the coaxial phase embedding of mid point, and crank arm two ends and axle center equality upward to thickening structure (6-7) in echelon, respectively be provided with a cylinder axis (6-3) on the trapezium structure (6-7), be with the card body (6-2) of the cylinder bodily form on the axle, the mid point of card body (6-2) side of each cylinder bodily form fixedly is equipped with a transverse axis (6-4), swinging strength is installed on the transverse axis strengthens piece (6-5), an end that strengthens piece (6-5) loads and draws spring (6-6), and each other end that strengthens piece (6-5) is installed on the spring bearing of supporting bracket (8-1).
10. the stepless adjustable formula pulsatory blood pump that contracts that relaxes according to claim 4, it is characterized in that: described valve switch control comprises a cuboid (7-1), described cuboid (7-1) is equipped with two pairs first cylinders (7-2) near place, two diagonal angles, the axle ditch (7-3) that one capsule shape is arranged in the middle of the cuboid, the cuboid middle part is equipped with a cuboid pushing block (7-4), respectively there are two second cylinders (7-5) the pushing block both sides, and pushing block one side prolongs piece (2-4) with forms shape drive block (2-3) or forms shape drive block cuboid outward and contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100259222A CN101219243B (en) | 2008-01-18 | 2008-01-18 | Stepless adjustable vasomotion pulsation blood pump with synchronous externally controlled valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100259222A CN101219243B (en) | 2008-01-18 | 2008-01-18 | Stepless adjustable vasomotion pulsation blood pump with synchronous externally controlled valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101219243A CN101219243A (en) | 2008-07-16 |
| CN101219243B true CN101219243B (en) | 2010-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100259222A Expired - Fee Related CN101219243B (en) | 2008-01-18 | 2008-01-18 | Stepless adjustable vasomotion pulsation blood pump with synchronous externally controlled valve |
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| CN (1) | CN101219243B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641525B (en) * | 2012-05-07 | 2014-10-01 | 暨南大学 | Multi-purpose extracorporeal double-ventricle circulation auxiliary pulsation type blood pump |
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Granted publication date: 20101208 Termination date: 20140118 |