CN218980241U - Blood circulation assistance system and ventricular blood assistance device - Google Patents

Blood circulation assistance system and ventricular blood assistance device Download PDF

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Publication number
CN218980241U
CN218980241U CN202222717241.0U CN202222717241U CN218980241U CN 218980241 U CN218980241 U CN 218980241U CN 202222717241 U CN202222717241 U CN 202222717241U CN 218980241 U CN218980241 U CN 218980241U
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blood
catheter
pump
conduit
circulating
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胡晓露
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Suzhou Shengxin Medical Technology Co ltd
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Suzhou Shengxin Medical Technology Co ltd
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Abstract

The utility model provides a blood circulation auxiliary system and ventricular blood auxiliary equipment, which comprises a catheter part arranged in a body and a pump part arranged outside the body, wherein the catheter part comprises a first catheter and a second catheter which are arranged separately, a blood inlet is arranged on the first catheter, a blood outlet is arranged on the second catheter, the first catheter is independently connected with a blood input port of the pump part, and the second catheter is independently connected with a blood output port of the pump part. The utility model also provides a blood circulation auxiliary system and ventricular blood auxiliary equipment. The beneficial effects of the utility model are as follows: the structure is simple, the volume is small, when the pump is implanted, only the first conduit and the second conduit are implanted, the implantation is convenient, the pump body part does not need to contact blood, and the complexity of the pump body and the intervention in-vivo pipeline is greatly simplified.

Description

Blood circulation assistance system and ventricular blood assistance device
Technical Field
The present utility model relates to medical devices, and more particularly, to a blood circulation assistance system and a ventricular blood assistance apparatus.
Background
Heart failure is the final stage of all cardiovascular disease progression, with the current rise in incidence of cardiovascular disease, the incidence of heart failure is also rising, and the mortality rate of heart failure is comparable to that of malignant tumors. Heart failure is also mostly represented by left heart failure, which is heart failure caused by left ventricular decompensation, and is clinically very common and mainly characterized by pulmonary circulatory congestion. Left heart failure is classified into acute left heart failure and chronic left heart failure, which are the final destination of most cardiovascular diseases and the leading cause of death. Acute left heart failure is a sudden decrease in cardiac output in a short period due to abnormality in structure and function of the sudden heart, and is a syndrome of insufficient tissue and organ perfusion and acute congestion, so that oxidized blood in the heart cannot be transported to the trunk of the body, and therefore, the left ventricular assist device (LeftVentricular Assist Device, LVAD) has important application research value in the field of cardiovascular treatment. The left ventricle auxiliary device is used for draining the blood of the left ventricle into the pump through the auxiliary pump and then injecting the blood into the aortic system, so that the pumping function of the left ventricle, namely the artificial blood pump, is partially or completely replaced, the burden of the left ventricle is reduced, and the blood supply of whole body tissues and organs is ensured.
The existing left ventricle auxiliary device realizes the blood circulation auxiliary, but has complex structure, large volume and complex implantation operation.
Therefore, how to provide a blood circulation auxiliary system with simple structure, small volume and convenient implantation is a technical problem to be solved by the person skilled in the art.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a blood circulation auxiliary system and ventricular blood auxiliary equipment.
The utility model provides a blood circulation auxiliary system, which comprises a catheter part arranged in a body and a pump part arranged outside the body, wherein the catheter part comprises a first catheter and a second catheter which are arranged separately, a blood inlet is arranged on the first catheter, a blood outlet is arranged on the second catheter, the first catheter is independently connected with a blood input port of the pump part, and the second catheter is independently connected with a blood output port of the pump part.
As a further development of the utility model, a pressure sensor capable of feeding back blood pressure is provided on the first conduit and/or the second conduit.
As a further improvement of the utility model, the pump section comprises a peristaltic pump capable of adjusting the blood flow rate in accordance with the blood pressure.
As a further improvement of the utility model, the pump section further comprises a circulation conduit on which the peristaltic pump is mounted, the circulation conduit comprising an inlet blood section and an outlet blood section, the inlet blood section of the circulation conduit being connected to the first conduit and the outlet blood section of the circulation conduit being connected to the second conduit.
As a further improvement of the utility model, the pump section further comprises a balloon pump mounted on the blood-leading-out section of the circulation conduit.
As a further improvement of the utility model, a pressure sensor for feeding back blood pressure to the pump part is arranged on the first conduit and/or the second conduit, the pump part comprises a peristaltic pump capable of adjusting blood flow speed according to blood pressure, the pump part further comprises a circulating conduit, the peristaltic pump is arranged on the circulating conduit, the circulating conduit comprises an inlet blood part and an outlet blood part, a blood input port of the inlet blood part of the circulating conduit is connected with the first conduit, and a blood output port of the outlet blood part of the circulating conduit is connected with the second conduit.
As a further improvement of the present utility model, a pressure sensor for feeding back blood pressure to the pump section is provided on the first conduit and/or the second conduit, the pump section includes a peristaltic pump for adjusting a blood flow rate according to blood pressure, the pump section further includes a circulation conduit mounted on the circulation conduit, the circulation conduit includes an inlet blood section and an outlet blood section, a blood inlet port of the inlet blood section of the circulation conduit is connected to the first conduit, a blood outlet port of the outlet blood section of the circulation conduit is connected to the second conduit, and the pump section further includes a balloon pump mounted on the outlet blood section of the circulation conduit.
As a further development of the utility model, the first conduit is provided with at least one blood inlet.
As a further development of the utility model, the second conduit is provided with at least one blood outlet.
As a further development of the utility model, the blood inlet is open at a side wall and/or a port of the first conduit.
As a further development of the utility model, the blood outlet is provided at a side wall and/or a port of the second conduit.
As a further development of the utility model, a one-way valve is connected between the pump part and the first conduit.
As a further development of the utility model, a one-way valve is connected between the pump part and the second conduit.
As a further improvement of the present utility model, the pump section includes a balloon pump capable of adjusting a blood flow speed according to blood pressure.
As a further improvement of the utility model, a one-way valve is connected between the balloon pump and the first catheter, and a one-way valve is connected between the balloon pump and the second catheter.
As a further improvement of the utility model, the first catheter and/or the second catheter is/are provided with a pressure sensor for feeding back blood pressure to the pump part, the pump part comprises a balloon pump capable of adjusting blood flow speed according to blood pressure, a one-way valve is connected between the balloon pump and the first catheter, and a one-way valve is connected between the balloon pump and the second catheter.
The utility model also provides an implementation method of the blood circulation auxiliary system, which is used for implementing the system.
The utility model also provides a ventricular blood assisting device, which comprises a conduit part arranged in a body and a pump part arranged outside the body, wherein the conduit part comprises a first conduit which is used for conveying blood sucked from a ventricle to a blood pump and a second conduit which is used for conveying blood discharged from the pump part to an aorta, the first conduit is provided with a blood inlet which is used for sucking the blood from the ventricle, the second conduit is provided with a blood outlet which is used for pouring the blood back to the aorta, the first conduit is independently connected to a blood input port of the pump part, and the second conduit is independently connected to a blood output port of the pump part.
As a further development of the utility model, the first catheter and/or the second catheter end is provided with a guide wire for guiding the catheter to the specified location.
As a further development of the utility model, a pressure sensor is provided on the first catheter and/or the second catheter, which pressure sensor is capable of feeding back blood pressure and synchronizing the beating of the heart.
As a further development of the utility model, the pump section comprises peristaltic pumps capable of adjusting blood flow rate according to blood pressure and capable of synchronizing cardiac pacing, transporting blood, increasing pressure as required, and perfusing blood back into the aorta.
As a further improvement of the utility model, the pump section further comprises a circulation conduit on which the peristaltic pump is mounted, the circulation conduit comprising an inlet blood section and an outlet blood section, the inlet blood section of the circulation conduit being connected to the first conduit and the outlet blood section of the circulation conduit being connected to the second conduit.
As a further improvement of the utility model, the pump section further comprises a balloon pump mounted on the blood-leading-out section of the circulation conduit.
As a further improvement of the utility model, the end part of the first catheter and/or the second catheter is provided with a guide wire for guiding the catheter to a designated position, the first catheter and/or the second catheter is provided with a pressure sensor capable of feeding back blood pressure and synchronizing heart pulsation, the pump part comprises a peristaltic pump capable of adjusting blood flow speed according to blood pressure and synchronizing heart pacing, transporting blood and filling the blood back into the aorta according to the condition of increasing pressure, the pump part further comprises a circulating catheter, the peristaltic pump is arranged on the circulating catheter, the circulating catheter comprises an leading-in blood part and a leading-out blood part, a blood input port of the leading-in blood part of the circulating catheter is connected with the first catheter, and a blood output port of the leading-out blood part of the circulating catheter is connected with the second catheter.
As a further improvement of the utility model, the end part of the first catheter and/or the second catheter is provided with a guide wire for guiding the catheter to a designated position, the first catheter and/or the second catheter is provided with a pressure sensor capable of feeding back blood pressure and synchronizing heart pulsation, the pump part comprises a peristaltic pump capable of adjusting blood flow speed according to blood pressure and synchronizing heart pacing, transporting blood and filling the blood back into the aorta according to the condition of increasing pressure, the pump part further comprises a circulating catheter, the peristaltic pump is arranged on the circulating catheter, the circulating catheter comprises an leading-in blood part and a leading-out blood part, a blood input port of the leading-in blood part of the circulating catheter is connected with the first catheter, a blood output port of the leading-out blood part of the circulating catheter is connected with the second catheter, and the pump part further comprises a balloon pump which is arranged on the leading-out blood part of the circulating catheter.
As a further development of the utility model, the first conduit is provided with at least one blood inlet.
As a further development of the utility model, the second conduit is provided with at least one blood outlet.
As a further development of the utility model, the blood inlet is open at a side wall and/or a port of the first conduit.
As a further development of the utility model, the blood outlet is provided at a side wall and/or a port of the second conduit.
As a further development of the utility model, a one-way valve is connected between the pump part and the first conduit.
As a further development of the utility model, a one-way valve is connected between the pump part and the second conduit.
As a further improvement of the present utility model, the pump section includes a balloon pump capable of adjusting a blood flow speed according to blood pressure.
As a further improvement of the utility model, a one-way valve is connected between the balloon pump and the first catheter, and a one-way valve is connected between the balloon pump and the second catheter.
As a further improvement of the utility model, the end part of the first catheter and/or the second catheter is provided with a guide wire for guiding the catheter to reach a designated position, the first catheter and/or the second catheter is provided with a pressure sensor capable of feeding back blood pressure and synchronizing the pulsation of the heart, the pump part comprises a balloon pump capable of adjusting the blood flow speed according to the blood pressure, a one-way valve is connected between the balloon pump and the first catheter, and a one-way valve is connected between the balloon pump and the second catheter.
The utility model also provides an implementation method of the ventricular blood assisting device, which is used for implementing the system.
The beneficial effects of the utility model are as follows: through above-mentioned scheme, mainly by pipe and pump composition, simple structure, small, when implanting, only need implant simple first pipe and second pipe, it is convenient to implant, and the pump body part need not to contact blood, has simplified the pump body greatly and has intervened the complexity of internal pipeline.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other solutions may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a blood circulation assistance system according to the present utility model.
Fig. 2 is a schematic diagram of a blood circulation assistance system employing peristaltic pumps in accordance with the present utility model.
FIG. 3 is a schematic diagram of a blood circulation assistance system employing peristaltic pump and balloon pump configurations according to the present utility model.
Fig. 4 is a schematic view of a blood circulation assistance system of the present utility model employing a balloon pump.
Fig. 5 is a schematic diagram illustrating the operation of a ventricular blood assist device of the present utility model.
Fig. 6 is a schematic diagram illustrating the operation of a ventricular blood assist device of the present utility model.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
The utility model is further described with reference to the following description of the drawings and detailed description.
Example 1
As shown in fig. 1, a blood circulation assistance system comprises a catheter section 100 disposed in a body and a pump section 200 disposed outside the body, wherein the catheter section 100 comprises a first catheter 101 and a second catheter 102 which are separately disposed, a blood inlet 1011 is provided on the first catheter 101, a blood outlet 1021 is provided on the second catheter 102, the first catheter 101 is independently connected to a blood inlet of the pump section 200, and the second catheter 102 is independently connected to a blood outlet of the pump section 200.
The first catheter 101 is a blood inlet tube, the second catheter 102 is a blood outlet tube, and blood can be pumped from the blood inlet 1011 of the first catheter 101 to the blood outlet 1021 of the second catheter 102 by the extracorporeal pump section 200, thereby achieving blood circulation assistance.
The first and second catheters 101, 102 may span the valve, placing the blood inlet 1011 into the heart chamber, and the blood outlet 1021 into the arterial vessel, allowing blood circulation between the heart chamber and the arterial vessel.
The first catheter 101 or the second catheter 102 to be placed in the body may be connected or separated in some manner, and the distance between the blood inlet 1011 and the blood outlet 1021 may be adjusted according to clinical needs.
The pump portion 200 is placed outside the body and does not need to contact the blood, greatly simplifying the complexity of the pump body and intervening body lines.
The blood inlet and outlet lines of the pump portion 200 are separately provided so that the blood inlet tube (i.e., the first catheter 101) and the blood outlet tube (i.e., the second catheter 102) are respectively and independently connected to the pump body, the two tubes are separately provided without controlling the two lines by using a check valve, and the distance between the blood inlet tube and the blood outlet tube can be adjusted according to an interventional procedure or after an operation.
Example two
On the basis of the first embodiment, the following is further improved:
as shown in fig. 2, the first conduit 101 and/or the second conduit 102 is provided with a pressure sensor 103 for feeding back the blood pressure to the pump portion 200, and the present embodiment preferably provides the pressure sensor 103 on the first conduit 101, and the blood pressure can be detected by the pressure sensor 103.
A pressure sensor 103 may be provided on the first conduit 101 or on the second conduit 102 as desired.
The pump section 200 comprises a peristaltic pump 201 capable of adjusting the blood flow rate according to the blood pressure and a circulation conduit 202, said peristaltic pump 201 not contacting the blood during circulation.
The peristaltic pump 201 can be adjusted according to the blood pressure fed back by the pressure sensor 103, so as to adjust the blood flow velocity. The pressure sensor may be an optical fiber pressure sensor or other sensor capable of realizing corresponding pressure sensing, the pressure sensor 103 transmits a real-time blood pressure signal to an external control unit, and the control unit dynamically controls the pump part 200 through the above-mentioned blood pressure signal, so that blood is pumped from the blood inlet 1011 of the first end 101 to the blood outlet 1021 of the second end 102, and thus, blood circulation assistance is realized.
The peristaltic pump 201 is mounted on the outer wall of the circulation conduit 202, the circulation conduit 202 comprises an inlet blood portion 2021 and an outlet blood portion 2022, the blood inlet of the inlet blood portion 2021 of the circulation conduit 202 is connected to the first conduit 101, and the blood outlet of the outlet blood portion 202 of the circulation conduit 202 is connected to the second conduit 102. Peristaltic pump 201 does not directly contact the blood, and pumps the blood flow by alternately squeezing and releasing the circulation catheter 202, achieving the function of blood transport.
Peristaltic pump 201 is placed outside the body and does not need to contact the blood, greatly simplifying the complexity of the pump body and intervening body lines.
The first catheter 101 is provided with at least one blood inlet 1011, i.e. a single blood inlet 1011 or a plurality of blood inlets 1011 may be provided as required, and a single port or a plurality of ports may be provided as required clinically. In order to facilitate accurate sensing of pressure, more comprehensive pressure value information is mastered, pressure sensors can be arranged at each blood inlet and each blood outlet, corresponding pressure value information is comprehensively obtained after sensing of a plurality of positions is analyzed and compared, and control of blood auxiliary transmission is more efficiently realized.
The second catheter 102 is provided with at least one blood outlet 1021, i.e. a single blood outlet 1021 or a plurality of blood outlets 1021 can be provided according to the needs, and a single port or a plurality of ports can be provided according to the clinical needs.
The blood inlet 1011 may be open on a side wall or port of the first conduit 101.
The blood outlet 1021 may be provided on a side wall or port of the second conduit 102.
Example III
On the basis of the foregoing embodiments, the following can be further improved:
as shown in fig. 3, the first conduit 101 and/or the second conduit 102 is provided with a pressure sensor 103 for feeding back the blood pressure to the pump portion 200, and the present embodiment preferably provides the pressure sensor 103 on the first conduit 101, and the blood pressure can be detected by the pressure sensor 103.
The pump section 200 includes a peristaltic pump 201 capable of adjusting the blood flow rate according to the blood pressure, a circulation catheter 202 and a balloon pump 203, both of which are placed outside the body without contacting the blood during circulation, greatly simplifying the complexity of the pump body and intervening body lines.
This embodiment provides the driving force for blood circulation in a combination of peristaltic pump 201 and balloon pump 203.
The peristaltic pump 201 is mounted on the circulation conduit 202, the circulation conduit 202 comprises an inlet blood portion 2021 and an outlet blood portion 2022, the blood inlet of the inlet blood portion 2021 of the circulation conduit 202 is connected to the first conduit 101, and the blood outlet of the outlet blood portion 202 of the circulation conduit 202 is connected to the second conduit 102.
The balloon pump 203 is mounted on the blood-derived portion 2022 of the circulation catheter 202.
Example IV
On the basis of the foregoing embodiments, the following can be further improved:
as shown in fig. 4, the first conduit 101 and/or the second conduit 102 is provided with a pressure sensor 103 for feeding back the blood pressure to the pump portion 200, and the present embodiment preferably provides the pressure sensor 103 on the first conduit 101, and the blood pressure can be detected by the pressure sensor 103.
The pump portion 200 includes a balloon pump 203 and a check valve 204, the balloon pump 203 is connected to the first catheter 101 through the check valve 204, the balloon pump 203 is connected to the second catheter 102 through the check valve 204, and the two check valves 204 can limit the unidirectional flow of blood.
The present embodiment employs a balloon pump 203 to provide the driving force for blood circulation.
The balloon pump 203 is placed outside the body and does not need to contact the blood, greatly simplifying the complexity of the pump body and intervening body lines.
Example five
As shown in fig. 5, a ventricular blood assist device comprises a catheter section placed in a body and a pump section placed outside the body, wherein the catheter section comprises a first catheter 12 for delivering blood sucked from a ventricle to a blood pump and a second catheter 14 for delivering blood discharged from the pump section to an aorta, the first catheter 12 is provided with a blood inlet 11 for sucking blood from the ventricle, the second catheter 14 is provided with a blood outlet 13 for pouring blood back to the aorta, the first catheter 12 is independently connected to a blood inlet of the pump section, and the second catheter 14 is independently connected to a blood outlet of the pump section.
A guide wire 9 for guiding the catheter to a designated position is arranged in the first catheter 12 and/or the second catheter 14.
The first catheter 12 and/or the second catheter 14 are provided with a pressure sensor 10 capable of feeding back blood pressure and synchronizing the pulsation of the heart.
The first conduit 12 and the second conduit 14 are both blood circulation tubes.
The pump section includes a peristaltic pump 15 by which the flow of blood may be driven.
The function of each component of the equipment is as follows:
the guide wire 9 is used for assisting the catheter to be pushed to a designated part;
the pressure sensor 10 can detect the pressure in the heart and transmit a real-time blood pressure signal to the control unit outside the body, and the control unit dynamically controls the driving device through the blood pressure signal, so that the pulsation control of the heart is convenient to realize;
the blood inlet 11 is for sucking blood from the ventricle;
the first conduit 12 is for delivering blood inhaled from the ventricle to a peristaltic pump;
a blood outlet 13 for pouring blood from the port back into the aorta;
a second conduit 14 for delivering blood from the peristaltic pump to the artery;
peristaltic pump 15 is used to synchronize the condition of cardiac pacing, to transport blood, to increase pressure as required, and to perfuse blood back into the aorta.
The heart system of the human body comprises a right atrium 1, a right ventricle 2, a left atrium 3, a left ventricle 4, an aortic valve 5 and an aorta, the aorta further comprises an ascending aorta 6, a descending aorta 7 and an aortic arch 8, the scheme is used at the position of the left ventricle and the aorta of the heart, a first catheter 12 is led into the left ventricle 4 through the aortic valve 5 under the guidance of a guide wire 9 by a vascular cavity technology, the pulsation of the heart is synchronized through the operation of a pressure sensor 10, blood enters the first catheter 12 from a blood inlet 11 and finally enters a peristaltic pump 15, and the peristaltic pump 15 is used for filling blood back into the aorta from a blood outlet 13 through a second catheter 14, so that auxiliary ventricular operation is achieved.
Example six
Based on the foregoing embodiments, there may be further implementations:
as shown in fig. 6, a scheme is provided in which two ventricular blood assist devices operate simultaneously, specifically as follows:
a dual circulation of blood assistance is achieved using two ventricular blood assist devices, a guide wire being provided at the end of the first and/or second conduit of each ventricular blood assist device, a pressure sensor being provided on the first and/or second conduit of each ventricular blood assist device, each ventricular blood assist device comprising a first conduit 12, 12 'and a second conduit 14, 14', the first conduit 12, 12 'being in extracorporeal communication with the second conduit 14, 14', a pump portion being provided in the extracorporeal.
The first and second catheters of each ventricular blood accessory are guided separately into the body under the guidance of the guide wire 9. One of the cycles, the first conduit 12 of one of the ventricular blood accessory devices is introduced into the left ventricle 4 through the aortic valve 5, the heart is synchronized with the beating by the operation of the pressure sensor 10, and the real-time blood pressure signal is transmitted to the external control unit, the control unit dynamically controls the pump part, preferably the peristaltic pump 15, through the action of the peristaltic pump 15, the blood in the left ventricle 4 is introduced into the first conduit 12 from the blood inlet 11, and under the action of the peristaltic pump 15, the blood is injected back into the aorta through the second conduit 14 from the blood outlet 13 on the second conduit 14;
in another cycle, the first catheter 12 'of the other ventricular blood accessory enters the right ventricle 2 under the guidance of the guide wire 9, the heart beats are synchronized by the operation of the pressure sensor 10' and a real-time blood pressure signal is transmitted to the control unit, which dynamically controls the pump part, preferably a peristaltic pump, by means of the above-mentioned blood pressure signal, and under the action of the peristaltic pump 15', the blood in the right ventricle 2 enters the first catheter 12' from the blood inlet 11', and the blood is perfused back into the pulmonary artery 16 through the second catheter 14' from the blood outlet 13 'on the second catheter 14'.
The two ventricular blood assisting devices work simultaneously, so that blood assisted double circulation is realized.
The blood circulation auxiliary system and the ventricular blood auxiliary equipment provided by the utility model relate to the technical field of interventional therapy, and can realize the assistance of blood circulation and the assistance of, for example, in the scene of in-vitro left ventricular assistance and the like; the product can be used for interventional auxiliary treatment for a long period of time, the service time can be 3 months to half a year, or longer, and the product has higher installability and better durability.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions can be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (33)

1. A blood circulation assistance system, characterized by: the device comprises a catheter part arranged in a body and a pump part arranged outside the body, wherein the catheter part comprises a first catheter and a second catheter which are separately arranged, a blood inlet is formed in the first catheter, a blood outlet is formed in the second catheter, the first catheter is independently connected to a blood input port of the pump part, and the second catheter is independently connected to a blood output port of the pump part.
2. The blood circulation assistance system according to claim 1, wherein: and a pressure sensor is arranged on the first conduit and/or the second conduit.
3. The blood circulation assistance system according to claim 1 or 2, wherein: the pump section comprises a peristaltic pump.
4. A blood circulation assistance system according to claim 3 wherein: the peristaltic pump is arranged on the circulating conduit, the circulating conduit comprises an inlet blood part and an outlet blood part, a blood input port of the inlet blood part of the circulating conduit is connected with the first conduit, and a blood output port of the outlet blood part of the circulating conduit is connected with the second conduit.
5. The blood circulation assistance system according to claim 4, wherein: the pump portion further includes a balloon pump mounted on the blood-exiting portion of the circulatory catheter.
6. The blood circulation assistance system according to claim 1, wherein: the first catheter and/or the second catheter are/is provided with a pressure sensor for feeding back blood pressure to the pump part, the pump part comprises a peristaltic pump, the peristaltic pump is arranged on the circulating catheter, the circulating catheter comprises a blood inlet part and a blood outlet part, the blood inlet port of the blood inlet part of the circulating catheter is connected with the first catheter, and the blood outlet port of the blood outlet part of the circulating catheter is connected with the second catheter.
7. The blood circulation assistance system according to claim 1, wherein: the pressure sensor is arranged on the first conduit and/or the second conduit, the pump part comprises a peristaltic pump, the pump part further comprises a circulating conduit, the peristaltic pump is arranged on the circulating conduit, the circulating conduit comprises an leading-in blood part and a leading-out blood part, a blood input port of the leading-in blood part of the circulating conduit is connected with the first conduit, a blood output port of the leading-out blood part of the circulating conduit is connected with the second conduit, the pump part further comprises a balloon pump, and the balloon pump is arranged on the leading-out blood part of the circulating conduit.
8. The blood circulation assistance system according to claim 1, wherein: at least one blood inlet is arranged on the first catheter.
9. The blood circulation assistance system according to claim 1, wherein: the second catheter is provided with at least one blood outlet.
10. The blood circulation assistance system according to claim 1, wherein: the blood inlet is formed in the side wall and/or the port of the first catheter.
11. The blood circulation assistance system according to claim 1, wherein: the blood outlet is arranged on the side wall and/or the port of the second catheter.
12. The blood circulation assistance system according to claim 1, wherein: a one-way valve is connected between the pump portion and the first conduit.
13. The blood circulation assistance system according to claim 1, wherein: a one-way valve is connected between the pump portion and the second conduit.
14. The blood circulation assistance system according to claim 1, wherein: the pump portion includes a balloon pump.
15. The blood circulation assistance system according to claim 14, wherein: a one-way valve is connected between the balloon pump and the first catheter, and a one-way valve is connected between the balloon pump and the second catheter.
16. The blood circulation assistance system according to claim 1, wherein: the pressure sensor is arranged on the first catheter and/or the second catheter, the pump part comprises a balloon pump, a one-way valve is connected between the balloon pump and the first catheter, and a one-way valve is connected between the balloon pump and the second catheter.
17. A ventricular blood assist device characterized by: the device comprises a catheter part arranged in a body and a pump part arranged outside the body, wherein the catheter part comprises a first catheter and a second catheter which are separately arranged, a blood inlet is formed in the first catheter, a blood outlet is formed in the second catheter, the first catheter is independently connected to a blood input port of the pump part, and the second catheter is independently connected to a blood output port of the pump part.
18. The ventricular blood assist device of claim 17, wherein: the end part of the first catheter and/or the second catheter is/are provided with a guide wire.
19. The ventricular blood assist device of claim 17, wherein: and a pressure sensor is arranged on the first conduit and/or the second conduit.
20. The ventricular blood assist device of claim 17 or 18, wherein: the pump section comprises a peristaltic pump.
21. The ventricular blood assist device of claim 20, wherein: the peristaltic pump is arranged on the circulating conduit, the circulating conduit comprises an inlet blood part and an outlet blood part, a blood input port of the inlet blood part of the circulating conduit is connected with the first conduit, and a blood output port of the outlet blood part of the circulating conduit is connected with the second conduit.
22. The ventricular blood assist device of claim 21, wherein: the pump portion further includes a balloon pump mounted on the blood-exiting portion of the circulatory catheter.
23. The ventricular blood assist device of claim 17, wherein: the end part of the first conduit and/or the end part of the second conduit are/is provided with a guide wire, the first conduit and/or the end part of the second conduit are/is provided with a pressure sensor, the pump part comprises a peristaltic pump, the pump part further comprises a circulating conduit, the peristaltic pump is arranged on the circulating conduit, the circulating conduit comprises a blood leading-in part and a blood leading-out part, a blood input port of the blood leading-in part of the circulating conduit is connected with the first conduit, and a blood output port of the blood leading-out part of the circulating conduit is connected with the second conduit.
24. The ventricular blood assist device of claim 17, wherein: the end part of the first catheter and/or the end part of the second catheter are/is provided with a guide wire, the first catheter and/or the end part of the second catheter are/is provided with a pressure sensor, the pump part comprises a peristaltic pump, the pump part further comprises a circulating catheter, the peristaltic pump is arranged on the circulating catheter, the circulating catheter comprises a blood leading-in part and a blood leading-out part, a blood input port of the blood leading-in part of the circulating catheter is connected with the first catheter, a blood output port of the blood leading-out part of the circulating catheter is connected with the second catheter, the pump part further comprises a balloon pump, and the balloon pump is arranged on the blood leading-out part of the circulating catheter.
25. The ventricular blood assist device of claim 17, wherein: at least one blood inlet is arranged on the first catheter.
26. The ventricular blood assist device of claim 17, wherein: the second catheter is provided with at least one blood outlet.
27. The ventricular blood assist device of claim 17, wherein: the blood inlet is formed in the side wall and/or the port of the first catheter.
28. The ventricular blood assist device of claim 17, wherein: the blood outlet is arranged on the side wall and/or the port of the second catheter.
29. The ventricular blood assist device of claim 17, wherein: a one-way valve is connected between the pump portion and the first conduit.
30. The ventricular blood assist device of claim 17, wherein: a one-way valve is connected between the pump portion and the second conduit.
31. The ventricular blood assist device of claim 17, wherein: the pump section includes a balloon pump capable of adjusting a blood flow rate according to blood pressure.
32. The ventricular blood assist device of claim 31, wherein: a one-way valve is connected between the balloon pump and the first catheter, and a one-way valve is connected between the balloon pump and the second catheter.
33. The ventricular blood assist device of claim 17, wherein: the end part of the first catheter and/or the second catheter is/are provided with a guide wire, the first catheter and/or the second catheter is/are provided with a pressure sensor, the pump part comprises a balloon pump, a one-way valve is connected between the balloon pump and the first catheter, and a one-way valve is connected between the balloon pump and the second catheter.
CN202222717241.0U 2022-10-14 2022-10-14 Blood circulation assistance system and ventricular blood assistance device Active CN218980241U (en)

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Applications Claiming Priority (1)

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