CN2613267Y - Pulsation type extracorporeal blood pump - Google Patents
Pulsation type extracorporeal blood pump Download PDFInfo
- Publication number
- CN2613267Y CN2613267Y CN 03216363 CN03216363U CN2613267Y CN 2613267 Y CN2613267 Y CN 2613267Y CN 03216363 CN03216363 CN 03216363 CN 03216363 U CN03216363 U CN 03216363U CN 2613267 Y CN2613267 Y CN 2613267Y
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- CN
- China
- Prior art keywords
- blood pump
- support
- extracorporeal circulation
- pulsation type
- circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a pulsatile typed cardiopulmonary bypass blood pump, comprising a direct changing valve which has little damage to blood cells, one interface end of the direct changing valve is connected with a blood input pipe, the other end is connected with a blood output pipe, a third interface end is connected with a blood pump pipe, the blood pump pipe is communicated with a bag body inner chamber which can extend and shrink along the axial direction, one end portion where the bag body is connected with the blood pump is fixed on a bracket, the other end is connected with a permanent magnet, the permanent magnet is flexibly connected on the bracket, the other end portion of the bracket is fixedly connected with an inductor which can be magnetized, the inductor is connected with a soft steel core, the soft steel core is winded with a sensing coil, two ends of the sensing coil are cascaded on a contact point circuit of a relay, and a controlling coil of the relay is connected with the output end of an impulsive circuit. The pulsatile typed cardiopulmonary bypass blood pump not only can realize the pulsatile typed cardiopulmonary bypass which is in accordance with a physiological function of the heart work, but also has simple structure for the direction changing valve, the bag body, the bracket, and the circuit, the cost is low and the utility model is convenient to be spread.
Description
Technical field
This utility model relates to a kind of extracorporeal circulation blood pump, a kind of pulsation type extracorporeal circulation blood pump of more specifically saying so.
Background technology
Heart disease is a kind of common frdquently encountered disease, because morbidity suddenly, the state of an illness is anxious again, if first aid is untimely, then directly jeopardizes patient's life.The method of extracorporeal circulation is normally adopted in clinical first aid to the cardiac, and the key equipment of extracorporeal circulation is a blood pump.General blood pump has two kinds, and a kind of is flat flow, and another kind is a pulsation type.The drawback of flat flow blood pump is that the physiological function with human heart work does not meet, and causes the microcirculation disturbance of human body easily; Though pulsation type blood pump is consistent with the physiological function of human heart work, complex structure costs an arm and a leg, and hemocyte is had destruction.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, pulsation type extracorporeal circulation blood pump of meeting human heart work physiological function.
In order to realize above-mentioned purpose, this pulsation type extracorporeal circulation blood pump, comprise a reversal valve little to hematoclasis, an interface end of reversal valve is connected to the blood input pipe, another interface end is connected to the blood outlet tube, the 3rd interface end is connected to the blood pump pipe, the utricule inner chamber that blood pump Guan Yuyi can stretch vertically and compress is communicated with, the end end that this utricule is connected with the blood pump pipe is fixed on the support, the other end is connected to permanent magnet, this permanent magnet is movably connected on the support by sliding component, the other end of support is connected with the inductor of magnetizable, inductor is connected with soft iron core, be tied with induction coil on the soft iron core, the two ends of induction coil are serially connected in the contact circuit of relay, and the control coil of this relay is connected on the outfan of impulse circuit.
Above-mentioned impulse circuit comprises that one produces 555 integrated circuits of pulse signal, and the outfan of this integrated circuit is connected to pulse amplifying circuit.
In order to prevent that utricule from producing radial deformation in compression process, on support, also be connected with guard ring by sliding component, the quantity of guard ring is 1-3.In order to prevent the utricule excess compression, support is equipped with separation sleeve on the section between the guard ring.
The sliding component of the movable end of realization utricule and the flexible connection of support can be the link that is connected between the two, it also can be other sliding component, each guard ring and support the sliding component of flexible connection can be the link that is connected between the two, also can be other sliding component.
For the ease of observing the amount of blood supply of each work process of blood pump, be provided with the scale of convex or concave on the top of support.
Above-mentioned support is three and is the horizontal bar that arrange on the equilateral triangle summit that respectively there is a triangle frame at the two ends of horizontal bar.
The work process of this pulsation type extracorporeal circulation blood pump is: 555 integrated circuits produce 30-100 pulse signal of per minute, the electric current of this pulse signal is after the pulse amplifier amplifies, enter the control coil of relay, relay work, the on off operating mode of the contact in the relay contact circuit changes.In the forward position period of pulse period, what flow through in the control coil is the direct impulse electric current, normally opened contact closure in the relay contact circuit, normally-closed contact disconnects, there is the direct impulse electric current to flow through in the induction coil, produce induced field, inductor is magnetized, and polarity holds polarity opposite with facing mutually of permanent magnet, at this moment, inductor and permanent magnet are attracted each other, and make permanent magnet produce displacement, and the displacement of permanent magnet drives the utricule synchronous shift, utricule is stretched, the pressure of utricule inner chamber reduces, and reversal valve and blood input pipe are connected, close with the blood outlet tube, blood menses pump line enters utricule; In the tailing edge period of pulse period, what flow through in the control coil is the reverse impulse electric current, normally opened contact in the relay contact circuit disconnects, the normally-closed contact closure, there is the reverse impulse electric current to flow through in the induction coil, the induced field that produce this moment makes the polarity of inductor and facing mutually of permanent magnet hold polarity identical, mutually exclusive between inductor and the permanent magnet, make the reverse displacement of permanent magnet, the reverse displacement of permanent magnet make utricule by extended state to resetting, and then be compressed, reversal valve cuts out blood input pipe end in this process, open blood output pipe end, blood flow into the blood outlet tube by utricule.Above-mentioned process is gone round and begun again, and realizes the pulsation type extracorporeal circulation.Scale on the support can be indicated the pump blood volume, and the pump blood volume is generally per minute 3.5-6.5 liter.
By above narration as can be known, this pulsation type extracorporeal circulation blood pump not only can be realized the pulsation type extracorporeal circulation, be consistent with the physiological function of human heart work, and reversal valve, utricule, support and circuit is simple in structure, and cost is low, is convenient to promote.
Description of drawings
Embodiment of the present utility model is illustrated in conjunction with the accompanying drawings, wherein;
Fig. 1 is the structural representation of pulsation type extracorporeal circulation blood pump when sucking blood process;
Fig. 2 is the structural representation of pulsation type extracorporeal circulation blood pump when row's blood process.
Fig. 3 is the circuit structure schematic diagram of impulse circuit;
Fig. 4 is the contact circuit schematic diagram of relay.
The specific embodiment
With reference to accompanying drawing, pulsation type extracorporeal circulation blood pump, comprise a reversal valve 1 little to hematoclasis, an interface end of reversal valve 1 is connected to blood input pipe 2, another interface end is connected to blood outlet tube 3, the 3rd interface end is connected to blood pump pipe 4, blood pump pipe 4 is communicated with utricule 5 inner chambers that can stretch vertically and compress, the end end that this utricule 5 is connected with blood pump pipe 4 is fixed on the support 6 by fixing guard ring 19, the other end is connected to permanent magnet 18, this permanent magnet 18 is movably connected on the support 6 by link 15, also be connected with guard ring 13 on the support 6 by link 16, the quantity of guard ring 13 is 1-3, support 6 be positioned at guard ring 13 the section on separation sleeve 14 is housed, the top of support 6 is provided with the scale 17 of convex or concave, support 6 is three and is the horizontal bar that arrange on the equilateral triangle summit, respectively there is a triangle frame at the two ends of horizontal bar, the other end of support 6 is connected with the inductor 7 of magnetizable, inductor 7 is connected with soft iron core 8, be tied with induction coil 9 on the soft iron core 8, the two ends of induction coil 9 are serially connected in the contact circuit of relay, the control coil 10 of this relay is connected on the outfan of impulse circuit, impulse circuit comprises that one produces 555 integrated circuits 11 of pulse signal, the outfan of this integrated circuit 11 is connected to audion pulse amplifying circuit 12, in 555 integrated circuits 11, R1 adjusts the cycle of pulse, R2 adjusts duty of ratio, the contact circuit of relay is by J1-1, J1-2, J2-1, J2-2 constitutes, and two opening twoly closed contact, and induction coil 9 is connected on J1, between the J2.
For ease of to utricule inner chamber sterilization, utricule 5 can be that the boundary is divided into sealable two sections with fixing guard ring 19.
Claims (8)
1, a kind of pulsation type extracorporeal circulation blood pump, comprise a reversal valve little (1) to hematoclasis, an interface end of reversal valve (1) is connected to blood input pipe (2), another interface end is connected to blood outlet tube (3), the 3rd interface end is connected to blood pump pipe (4), it is characterized in that utricule (5) inner chamber that blood pump pipe (4) and can stretch vertically and compress is communicated with, the end end that this utricule (5) is connected with blood pump pipe (4) is fixed on the support (6), the other end is connected to permanent magnet (18), this permanent magnet (18) is movably connected on the support (6) by sliding component, the other end of support (6) is connected with the inductor (7) of magnetizable, inductor (7) is connected with soft iron core (8), be tied with induction coil (9) on the soft iron core (8), the two ends of induction coil (9) are serially connected in the contact circuit of relay, and the control coil of this relay (10) is connected on the outfan of impulse circuit.
2, pulsation type extracorporeal circulation blood pump according to claim 1 is characterized in that impulse circuit comprises that one produces 555 integrated circuits (11) of pulse signal, and the outfan of this integrated circuit (11) is connected to pulse amplifying circuit (12).
3, pulsation type extracorporeal circulation blood pump according to claim 1 is characterized in that also being connected with guard ring (13) by sliding component on support (6), and the quantity of guard ring (13) is 1-3.
4, pulsation type extracorporeal circulation blood pump according to claim 3, it is characterized in that support (6) be positioned between the guard ring (13) the section on separation sleeve (14) is housed.
5, pulsation type extracorporeal circulation blood pump according to claim 1 is characterized in that the sliding component of the flexible connection of the movable end of utricule (5) and support (6) is the link (15) that is connected between the two,
6, pulsation type extracorporeal circulation blood pump according to claim 3, it is characterized in that each guard ring (13) and support (6) the sliding component of flexible connection be the link (16) that is connected between the two.
7, pulsation type extracorporeal circulation blood pump according to claim 1 is characterized in that being provided with on the top of support (6) scale (17) of convex or concave.
8, according to claim 1,2,3,5 or 7 described pulsation type extracorporeal circulation blood pumps, it is characterized in that support (6) is three and is the horizontal bar that arrange on the equilateral triangle summit, respectively there is a triangle frame at the two ends of horizontal bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216363 CN2613267Y (en) | 2003-04-10 | 2003-04-10 | Pulsation type extracorporeal blood pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216363 CN2613267Y (en) | 2003-04-10 | 2003-04-10 | Pulsation type extracorporeal blood pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2613267Y true CN2613267Y (en) | 2004-04-28 |
Family
ID=34242950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03216363 Expired - Fee Related CN2613267Y (en) | 2003-04-10 | 2003-04-10 | Pulsation type extracorporeal blood pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2613267Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284091A (en) * | 2011-06-16 | 2011-12-21 | 北京航空航天大学 | Left ventricle assist device |
| CN106563182A (en) * | 2016-11-04 | 2017-04-19 | 上海理工大学 | Electromagnetic drive bidirectional pulsed blood pump |
| CN108744096A (en) * | 2018-06-04 | 2018-11-06 | 上海市杨浦区市东医院 | A kind of magnetic drive high flow capacity pulsation type blood pump |
| CN109157686A (en) * | 2018-08-20 | 2019-01-08 | 上海市杨浦区市东医院 | A kind of high flow capacity pulsation type electromagnetic blood pump and the left heart counterpulsation auxiliary system comprising it |
| CN111298225A (en) * | 2019-12-02 | 2020-06-19 | 李勇 | Balloon heart counterpulsation device comprising electromagnet |
-
2003
- 2003-04-10 CN CN 03216363 patent/CN2613267Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284091A (en) * | 2011-06-16 | 2011-12-21 | 北京航空航天大学 | Left ventricle assist device |
| CN106563182A (en) * | 2016-11-04 | 2017-04-19 | 上海理工大学 | Electromagnetic drive bidirectional pulsed blood pump |
| CN108744096A (en) * | 2018-06-04 | 2018-11-06 | 上海市杨浦区市东医院 | A kind of magnetic drive high flow capacity pulsation type blood pump |
| CN109157686A (en) * | 2018-08-20 | 2019-01-08 | 上海市杨浦区市东医院 | A kind of high flow capacity pulsation type electromagnetic blood pump and the left heart counterpulsation auxiliary system comprising it |
| CN111298225A (en) * | 2019-12-02 | 2020-06-19 | 李勇 | Balloon heart counterpulsation device comprising electromagnet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |