CN101138658A - Electric-liquid type heart extracorporeal circulation pulsatory blood pump - Google Patents
Electric-liquid type heart extracorporeal circulation pulsatory blood pump Download PDFInfo
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- CN101138658A CN101138658A CNA2007100456315A CN200710045631A CN101138658A CN 101138658 A CN101138658 A CN 101138658A CN A2007100456315 A CNA2007100456315 A CN A2007100456315A CN 200710045631 A CN200710045631 A CN 200710045631A CN 101138658 A CN101138658 A CN 101138658A
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Abstract
The present invention relates to an electro hydraulic-typed blood pulsation pump for the heart cardiopulmonary bypass. The shell of the blood pump is provided with a blood package, which is arranged in the inlet and out blood vessels at the two ends of the blood pump shell. The liquid is pumping in or pumping out of the pump by a piston mechanism, therefore the blood package in the pump can shrink and expand and the blood can pump in and pump out of the blood package. A butterfly-typed valve with single direction is arranged in two ends of his inlet and out blood vessels. The blood can flow in and flow out of the blood package in single direction; therefore the blood supply function of the heart is formed. The circuit, the pulse and the blood flow are controlled by the industrial control computer. By adjusting the rotating speed of the motor, the treatment effect is guaranteed according to the settled moving parameter.
Description
Technical field
The present invention relates to a kind of electric-liquid type heart extracorporeal circulation pulsatory blood pump, is a kind of extracorporeal circulation of blood device of beating with the electrohydraulic dynamic generation, is used for the heart failure preoperative and postoperative and improves the treatment of heart failure situation and rescue the heart failure patient who faces death.Belong to technical field of medical instruments,
Background technology
Because the development of various heart diseases will progressively develop into chronic heart failure, it is compensatory and dead because of losing whole latter stage finally to enter heart failure.With the heart failure condition is example, although surgical technic, myocardial preservation technology in continuous progress, in postcardiac surgery, still have patient can not break away from extracorporeal circulation because of cardiogenic shock takes place.Only carry out heart transplantation for the compensatory surgical patient that maybe can not break away from external turn of tidal stream of these mistakes and can save life, but become the difficult problem that the whole world faces again for heart source.
Ventricular assist device (VAD) is used for partially or completely substituting the ventricle blood-pumping function, also is artificial blood pump.Pulsation type blood pump and non-pulsation type blood pump are arranged is the advection blood pump to common used blood pump in the present clinical cardiac surgery operation extracorporeal circulation.In the short time application, pulsatile flow and non-pulsatile flow are not remarkable to the dabbling influence of body, but when long-time assisting, pulsatile flow obviously is better than non-pulsatile flow perfusion to the perfused tissue effect, this is because the former meets physiology perfusion, more helps the recovery of tissue organ function and keeps.Can be divided into external type and body is implanted into type according to ventricular assist device in the human body riding position.External type ventricular assist device safety, effectively is restricted but its disadvantage is patient's activity, is used for the support of postcardiac surgery heart failure mostly, secondly as the support of serious heart failure patient to the heart transplantation transition.According to driving method, ventricular assist device can be divided into air-driven type and power type again, and pneumatic is the most frequently used driving method.The patent that China national Department of Intellectual Property successively discloses the external pulsate pump of several hearts from solved blood circulation in varying degrees, the problem of aspect such as the driving of beating, blood filtration and/or anti-tampon, but have some common shortcoming and defect.(Chinese invention patent publication number CN2178532A) is example with left heart auxiliary blood pump, and its weak point has:
1. adopt the pulsation blood pump of pneumatic power to exist air machinery excessive, be unfavorable for the mobile use of equipment; And aerodynamic noise is bigger.
2. do not have control device, duty that can not the regulated at will blood pump.
3. the demonstration of the status data when failing blood pump work is provided is unfavorable for real time monitoring.
4. the replacing complicated operation uses inconvenience.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, design provides a kind of electric-liquid type heart extracorporeal circulation pulsatory blood pump, can well finish blood circulation, alleviate the heart burden, can also be with dynamic and interactive mode, carry out Flow-rate adjustment, select to beat number of times at different patients, the temperature and the flow of turnover blood of human body are monitored in real time, guarantee sanguimotor good environment.
For realizing this purpose, in the technical scheme of the present invention, a haematodocha is set in the blood pump housing, haematodocha is installed on the turnover blood channel at blood pump housing two ends, adopt piston mechanism the haematodocha of the pump housing is shunk and expansion, make blood energy suction and extrude haematodocha, in the turnover blood channel at two ends the butterfly check valve is housed respectively, make the unidirectional inflow and outflow pump of blood capsule, form the heart blood supply function,, control and beat number of times and extrude blood flow respectively by control circuit by industrial computer, guarantee the blood supply balance that needs in the human body, industrial computer by screen and the interactive acceptance of keyboard to beating number of times and extrude the selection of blood flow, by regulating the control rotating speed of motor, guarantee to reach therapeutic effect according to the kinematic parameter predetermined value that is provided with.
Concrete structure of the present invention is: the two ends of blood pump housing are fixedly advanced blood vessel respectively and are gone out blood vessel, place a haematodocha in the blood pump housing, the two ends of haematodocha respectively with advance blood vessel and go out blood vessel and be connected, the middle-end of blood pump housing is fixed a hydraulic pressure mouth, one end of conduit under fluid pressure links to each other with the hydraulic pressure mouth and is connected with blood pump enclosure interior space by the hydraulic pressure mouth, and the other end of conduit under fluid pressure is connected with plunger shaft.Advance blood vessel, go out to be equipped with respectively in the blood vessel and unidirectionally advance the blood vessel butterfly valve, go out the blood vessel butterfly valve.In blood pump housing that conduit under fluid pressure is communicated with and the enclosed space between the haematodocha, be full of normal saline in plunger shaft; Piston in the plunger shaft links to each other with bent axle on being installed in motor by connecting rod, and motor links to each other with industrial computer, and industrial computer links to each other with operation keyboard with display screen respectively.
When blood pump of the present invention is worked, heart cathetrization is connected on advancing on the blood vessel of blood pump, again the arteries intubate is connected on going out on the blood vessel of blood pump.Operator are by the computer settings per minute haematodocha number of times (rate of beating of beating, inferior/minute), per minute flow (decrement, 1 liter～6 liters/minute) and the velocity contrast (compression ratio of compression and diastole, the ratio of the speed of compression and diastole), in the enclosed space of plunger shaft, conduit under fluid pressure and blood pump housing, be full of normal saline, under the control of industrial computer, drive piston by motor by crankshaft-and-connecting-rod and extrude and suction liquid.The liquid that extrudes shrinks with the compressing haematodocha in conduit under fluid pressure flows to the blood pump housing, because the unidirectional butterfly valve effect at haematodocha two ends makes the blood in the haematodocha pump into arteries through going out blood vessel and going out the blood vessel butterfly valve; When piston pumpback liquid, the intravital liquid of blood pump shell is back in the plunger shaft through conduit under fluid pressure, causes negative pressure to make the haematodocha diastole in the blood pump housing, because of unidirectional butterfly valve effect makes the blood in the heart flow in the haematodocha through advancing blood vessel and advancing the blood vessel butterfly valve.The motion that goes round and begins again of motor-driven piston like this makes haematodocha constantly shrink expansion, and the blood in the heart is pumped into arteries, finishes the blood circulation process.
Haematodocha of the present invention, advance blood vessel, go out blood vessel, advance the blood vessel butterfly valve and go out the blood vessel butterfly valve all to adopt disposable sterilization haematodocha and medical heart intubate, each treatment back is all changed, guarantee whole blood access aseptic and not with extraneous other device contacts, stop cross infection.
The employing of industrial computer of the present invention, make the medical worker can monitor sanguimotor process immediately, can be as required to decrement, the compression ratio and the amount of beating are adjusted in real time, control rotating speed of motor by automatic adjusting of computer, assurance reaches therapeutic effect according to the kinematic parameter predetermined value that is provided with.
The present invention has stable, and system is succinct, friendly interface, advantage such as easy to use.
Description of drawings
Fig. 1 is a structural representation of the present invention.
In Fig. 1,1 haematodocha, 2 advance blood vessel, and 3 go out blood vessel, and 4 advance the blood vessel butterfly valve, and 5 go out the blood vessel butterfly valve, 6 blood pump housings, 7 hydraulic pressure mouths, 8 pistons, 9 connecting rods, 10 bent axles, 11 motors, 12 conduit under fluid pressures, 13 plunger shaft, 14 industrial computers, 15 display screens, 16 operation keyboards.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is further described.
The structure of electric-liquid type heart extracorporeal circulation pulsatory blood pump of the present invention as shown in Figure 1, the two ends of blood pump housing 6 are fixedly advanced blood vessel 2 respectively and are gone out blood vessel 3, place a haematodocha 1 in the blood pump housing 6, the two ends of haematodocha 1 respectively with advance blood vessel 2 and go out blood vessel 3 to be connected, the middle-end of blood pump housing 6 is fixed a hydraulic pressure mouth 7, one end of conduit under fluid pressure 12 links to each other with hydraulic pressure mouth 7 and is connected with blood pump housing 6 inner spaces by hydraulic pressure mouth 7, and the other end of conduit under fluid pressure 12 is connected with plunger shaft 13.Advance blood vessel 2, go out to be equipped with respectively in the blood vessel 3 and unidirectionally advance blood vessel butterfly valve 4, go out blood vessel butterfly valve 5.In blood pump housing 6 that conduit under fluid pressure 12 is communicated with and the enclosed space between the haematodocha 1, be full of normal saline in plunger shaft 13.Bent axle 10 is installed on the motor 11, and the two ends of connecting rod 9 are connected in respectively on bent axle 10 and the piston 8, and motor 11 links to each other with industrial computer 14, and industrial computer 14 links to each other with operation keyboard 16 with display screen 15 respectively.
Electric-liquid type heart extracorporeal circulation pulsatory blood pump of the present invention advances blood vessel 2 and is connected to heart left ventricle by heart cathetrization when being used for the treatment of, and goes out blood vessel 3 and is connected to arteries by heart cathetrization.Import decrement and compression ratios by operation keyboard 16 and display screen 15 to industrial computer 14, on industrial computer 14, start operation, just according to default decrement, compression ratio and 11 motions of the amount of beating control motor, motor 11 drives piston 8 by bent axle 10 and connecting rod 9 and moves back and forth in plunger shaft 13 industrial computer 14 again.Since from plunger shaft 13 through conduit under fluid pressure 12 full of liquid normal saline to the enclosed space of blood pump housing 6, the reciprocating motion of piston 8 is when extruding liquid, liquid is in conduit under fluid pressure 12 flows to blood pump housing 6, make haematodocha 1 shrink, produce systolic pressure, because the unidirectional butterfly valve effect at haematodocha 1 two ends makes the blood in the haematodocha 1 pump into arteries through going out blood vessel 3 and going out blood vessel butterfly valve 5; When piston 8 pumpback liquid, liquid in the blood pump housing 6 is back in the plunger shaft 13 through conduit under fluid pressure 12, in blood pump housing 6, cause negative pressure to make haematodocha 1 diastole, because of the check valve effect of advancing blood vessel butterfly valve 4 makes the blood in the heart flow in the haematodocha 1 through advancing blood vessel 2 and advancing blood vessel butterfly valve 4.Piston 8 constantly moves back and forth according to the parameter of setting under the motor 11 by industrial computer 14 controls drives like this, makes contraction and the diastole that haematodocha 1 does not stop to produce systolic pressure and diastolic pressure, and auxiliary sanguimotor power is provided.
Among the present invention, the haematodocha diastole makes the blood in the heart charge into haematodocha by heart cathetrization through check valve, and haematodocha shrinks the blood that makes in the haematodocha and enters arteries through check valve extrusion haematodocha, finishes the blood circulation of a heartbeat.Industrial computer 14 can be controlled and beat number of times and extrude blood flow, guarantees the blood supply balance that needs in the human body.Industrial computer 14 is by display screen 15 and operation keyboard 16, and interactive acceptance is to the selection of beat number of times and extrusion blood flow.
Haematodocha 1 among the present invention, advance blood vessel 2, go out blood vessel 3, advance blood vessel butterfly valve 4, going out blood vessel butterfly valve 5 all is disposable use, during treatment blood only with haematodocha 1, advance blood vessel 2, go out blood vessel 3, advance blood vessel butterfly valve 4 and go out blood vessel butterfly valve 5 and directly contact, guarantee not produce cross infection.
The medical worker can operate by interactive interface, at different patients the different decrements of blood pump is set, and the compression ratio and the amount of beating are monitored in real time to the temperature and the flow of turnover blood of human body, guarantee sanguimotor good environment.
Claims (1)
1. electric-liquid type heart extracorporeal circulation pulsatory blood pump, the two ends that it is characterized in that blood pump housing (6) are fixedly advanced blood vessel (2) respectively and are gone out blood vessel (3), place a haematodocha (1) in the blood pump housing (6), the two ends of haematodocha (1) respectively with advance blood vessel (2) and go out blood vessel (3) to be connected, the middle-end of blood pump housing (6) is fixed a hydraulic pressure mouth (7), one end of conduit under fluid pressure (12) links to each other with hydraulic pressure mouth (7) and is connected with blood pump housing (6) inner space by hydraulic pressure mouth (7), and the other end of conduit under fluid pressure (12) is connected with plunger shaft (13); Advance blood vessel (2), go out to be equipped with respectively in the blood vessel (3) and unidirectionally advance blood vessel butterfly valve (4), go out blood vessel butterfly valve (5); In blood pump housing (6) that conduit under fluid pressure (12) is communicated with and the enclosed space between the haematodocha (1), be full of normal saline in plunger shaft (13); Piston (8) in the plunger shaft (13) links to each other with bent axle (10) on being installed in motor (11) by connecting rod (9), and motor (11) links to each other with industrial computer (14), and industrial computer (14) links to each other with operation keyboard (16) with display screen (15) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100456315A CN100509066C (en) | 2007-09-06 | 2007-09-06 | Electric-liquid type heart extracorporeal circulation pulsatory blood pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100456315A CN100509066C (en) | 2007-09-06 | 2007-09-06 | Electric-liquid type heart extracorporeal circulation pulsatory blood pump |
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| Publication Number | Publication Date |
|---|---|
| CN101138658A true CN101138658A (en) | 2008-03-12 |
| CN100509066C CN100509066C (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100456315A Expired - Fee Related CN100509066C (en) | 2007-09-06 | 2007-09-06 | Electric-liquid type heart extracorporeal circulation pulsatory blood pump |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101439207B (en) * | 2008-12-23 | 2011-08-10 | 重庆山外山科技有限公司 | Plunger metering pump for purifying blood |
| CN101745156B (en) * | 2008-12-05 | 2011-11-16 | 上海交通大学医学院附属瑞金医院 | Pulsation type double-haematodocha heart auxiliary circulation device |
| CN105311692A (en) * | 2014-06-27 | 2016-02-10 | 王辉山 | Novel blood circulating device |
| CN106693095A (en) * | 2016-12-27 | 2017-05-24 | 安徽农业大学 | Pneumatic heart auxiliary blood pumping device |
| CN107412893A (en) * | 2017-05-11 | 2017-12-01 | 赵芬 | A kind of intelligent electric-liquid type heart extracorporeal circulation pulsatory blood pump |
-
2007
- 2007-09-06 CN CNB2007100456315A patent/CN100509066C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745156B (en) * | 2008-12-05 | 2011-11-16 | 上海交通大学医学院附属瑞金医院 | Pulsation type double-haematodocha heart auxiliary circulation device |
| CN101439207B (en) * | 2008-12-23 | 2011-08-10 | 重庆山外山科技有限公司 | Plunger metering pump for purifying blood |
| CN105311692A (en) * | 2014-06-27 | 2016-02-10 | 王辉山 | Novel blood circulating device |
| CN105311692B (en) * | 2014-06-27 | 2019-05-28 | 王辉山 | A kind of New Blood circulator |
| CN106693095A (en) * | 2016-12-27 | 2017-05-24 | 安徽农业大学 | Pneumatic heart auxiliary blood pumping device |
| CN107412893A (en) * | 2017-05-11 | 2017-12-01 | 赵芬 | A kind of intelligent electric-liquid type heart extracorporeal circulation pulsatory blood pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100509066C (en) | 2009-07-08 |
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