CN115487414A - Blood circulation auxiliary method, device and system - Google Patents

Blood circulation auxiliary method, device and system Download PDF

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Publication number
CN115487414A
CN115487414A CN202211260644.5A CN202211260644A CN115487414A CN 115487414 A CN115487414 A CN 115487414A CN 202211260644 A CN202211260644 A CN 202211260644A CN 115487414 A CN115487414 A CN 115487414A
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CN
China
Prior art keywords
blood
catheter
blood circulation
conduit
connecting tube
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Pending
Application number
CN202211260644.5A
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Chinese (zh)
Inventor
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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Priority to CN202211260644.5A priority Critical patent/CN115487414A/en
Publication of CN115487414A publication Critical patent/CN115487414A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
    • A61M60/165—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart
    • A61M60/178—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
    • A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
    • A61M60/13—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
    • A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
    • A61M60/135—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel inside a blood vessel, e.g. using grafting
    • A61M60/139—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel inside a blood vessel, e.g. using grafting inside the aorta, e.g. intra-aortic balloon pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/20—Type thereof
    • A61M60/205—Non-positive displacement blood pumps
    • A61M60/216—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
    • A61M60/237—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller the blood flow through the rotating member having mainly axial components, e.g. axial flow pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/20—Type thereof
    • A61M60/295—Balloon pumps for circulatory assistance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/40—Details relating to driving
    • A61M60/403—Details relating to driving for non-positive displacement blood pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/40—Details relating to driving
    • A61M60/497—Details relating to driving for balloon pumps for circulatory assistance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow

Abstract

The invention provides a blood circulation auxiliary method, equipment and a system, firstly, a catheter is guided into a body, the catheter is provided with a first end and a second end, and one part of the catheter is placed outside the body; secondly, a blood inlet at the first end of the catheter is arranged at a first position in the body, and blood is sucked into the catheter from the first position through the blood inlet under the action of a driving device; the blood outlet of the second end of the catheter is then placed at a second location in the body, and the blood in the catheter is perfused back to the second location in the body through the blood outlet of the second end by the action of the driving means. The technical problems that a traditional blood circulation auxiliary device is large in size, complex in implantation mode, poor in blood transmission effect and the like are solved, implantation convenience and transmission effect of a blood transmission system are improved, and safety and durability are improved.

Description

Blood circulation auxiliary method, device and system
Technical Field
The invention relates to the technical field of interventional medical instruments, in particular to a blood circulation auxiliary method, equipment and a system.
Background
Heart failure refers to a decrease in the ability of the heart muscle to contract, failing to pump more blood out of the heart, requiring human intervention. When the traditional drug therapy has certain limitations and can not achieve the therapeutic effect, and the heart transplantation is difficult to realize donor deficiency, postoperative rejection reaction and the like, researchers propose a method for assisting the heart recovery by using a mechanical device to develop a Ventricular Assist Device (VAD), which is an artificial mechanical device for pumping blood from a venous system or a heart directly into an arterial system to partially or completely replace a ventricle for working, and ensures the cardiac output.
Conventional blood circulation assistance devices and methods have many limitations and disadvantages in their use, which are inconvenient, for example, conventional ventricular assist devices are implanted surgically by making holes in the ventricles (e.g., left ventricle, right ventricle) and arteries (e.g., aorta, pulmonary artery, etc.), and placing a pump in between to create a passageway. The percutaneous left ventricular assist device which is implanted in a surgical operation with larger trauma and is mainly used in clinical application at present is a Meidun force ventricular assist device Heartware (HVAD), a tandm Heart percutaneous left ventricular assist device, an Impella ventricular assist system and the like.
As mentioned in Wo1994009835A1 patent by inventor jarik, robert, and in US6544216B1 patent by inventor Rolf Sammler, ludinghausen, intracardiac blood pump devices for blood circulation, the above prior art is complicated, bulky and expensive, and when the circulation of the lung is interrupted, it is liable to cause thrombosis in the pulmonary blood vessels and is highly prone to hemorrhage; or the implantation mode is complex, and the trauma to the body is large.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a blood circulation auxiliary system method, a device and a system.
The invention provides a blood circulation auxiliary method, which comprises the following steps:
s1, guiding a catheter into a body, wherein the catheter is provided with a first end and a second end, and one part of the catheter is placed outside the body;
s2, placing a blood inlet at the first end of the catheter at a first position in a body, and sucking blood from the first position into the catheter through the blood inlet under the action of a driving device;
and S3, placing the blood outlet of the second end of the catheter at a second position in the body, and under the action of a driving device, enabling the blood in the catheter to flow through the second end of the catheter and perfuse the blood back to the second position in the body through the blood outlet of the second end of the catheter.
As a further development of the invention, the drive device is arranged outside the body.
As a further improvement of the invention, a connecting pipe is arranged between the first end of the conduit and the second end of the conduit, two ends of the connecting pipe are respectively connected with the first end and the second end, and the driving device is arranged at the connecting pipe.
As a further development of the invention, the drive means is a peristaltic pump arranged on the outer wall of the conduit.
As a further improvement of the invention, the driving device is a peristaltic pump arranged on the outer wall of the catheter and a balloon pump arranged on the catheter.
As a further improvement of the invention, the driving device is a one-way valve arranged on the catheter and a balloon pump arranged on the catheter.
As a further improvement of the invention, the driving device is a peristaltic pump disposed on an outer wall of the connecting tube.
As a further improvement of the invention, the driving device is a peristaltic pump arranged on the outer wall of the connecting pipe and a balloon pump arranged on the connecting pipe.
As a further improvement of the invention, the driving device is a one-way valve arranged on the connecting pipe and a balloon pump arranged on the connecting pipe.
As a further improvement of the invention, the first end and the second end are separately provided.
As a further development of the invention, the first end communicates directly with the second end.
As a further improvement of the invention, the first end and/or the second end is/are provided with a pressure sensor.
As a further improvement of the present invention, the blood inlet is plural; the blood outlet is a plurality of blood outlets.
As a further improvement of the invention, the blood inlets are provided with pressure sensors.
As a further improvement of the invention, the blood outlets are provided with pressure sensors.
As a further improvement of the present invention, the first position is in a ventricle (e.g. left ventricle, right ventricle) of the human body, and the second position is in an artery (e.g. aorta, pulmonary artery, etc.) of the human body.
As a further improvement of the invention, the catheter is guided into the body by a guide wire.
The invention also provides a blood circulation assistance device comprising a catheter and a drive means, the catheter comprising a first end and a second end;
the first end is disposed at a first location in the body and the second end is disposed at a second location in the body;
the first end is in communication with the second end extracorporeally;
the driving device is arranged outside the body and is used for providing power for blood circulation for the blood circulation auxiliary equipment;
the first end is provided with a blood inlet, and the second end is provided with a blood outlet.
As a further improvement of the invention, a connecting pipe is arranged between the first end of the conduit and the second end of the conduit, two ends of the connecting pipe are respectively connected with the first end and the second end, and the driving device is arranged at the connecting pipe.
As a further development of the invention, the drive means is a peristaltic pump arranged on the outer wall of the conduit.
As a further improvement of the invention, the driving device is a peristaltic pump arranged on the outer wall of the catheter and a balloon pump arranged on the catheter.
As a further improvement of the invention, the driving device is a one-way valve arranged on the catheter and a balloon pump arranged on the catheter.
As a further improvement of the invention, the driving device is a peristaltic pump disposed on an outer wall of the connecting tube.
As a further improvement of the invention, the driving device is a peristaltic pump arranged on the outer wall of the connecting pipe and a balloon pump arranged on the connecting pipe.
As a further improvement of the invention, the driving device is a one-way valve arranged on the connecting pipe and a balloon pump arranged on the connecting pipe.
As a further development of the invention, the first end and the second end are arranged separately.
As a further development of the invention, the first end communicates directly with the second end.
As a further development of the invention, the first end and/or the second end is/are provided with a pressure sensor.
As a further improvement of the present invention, the blood inlet is plural; the blood outlet is a plurality of blood outlets.
As a further improvement of the invention, the blood inlets are provided with pressure sensors.
As a further improvement of the invention, the blood outlets are provided with pressure sensors.
As a further improvement of the invention, the first end and the second end are different parts of the same pipe, and the first end and the second end are directly communicated.
As a further improvement of the present invention, the first position is in a ventricle (e.g. left ventricle, right ventricle) of the human body, and the second position is in an artery (e.g. aorta, pulmonary artery, etc.) of the human body.
The present invention also provides a blood circulation assistance system comprising: a guide wire, a pressure sensor, a catheter and a driving device;
the guide wire is arranged at the end part of the catheter;
the pressure sensor is arranged on the conduit;
the catheter comprises a first end and a second end, the first end in extracorporeal communication with the second end;
the driving device is arranged outside the body;
the first end is provided with a blood inlet, and the second end is provided with a blood outlet;
the blood inlet is used for sucking blood from a ventricle (such as a left ventricle and a right ventricle);
the first end is used for conveying blood sucked through the blood inlet;
the driving device is used for transmitting the blood from the first end to the second end according to the signal of the pressure sensor;
the second end is used for conveying blood to the blood outlet;
the blood outlet is used to perfuse blood in the second end back into an artery (e.g., aorta, pulmonary artery, etc.).
As a further improvement of the invention, a connecting pipe is arranged between the first end of the conduit and the second end of the conduit, two ends of the connecting pipe are respectively connected with the first end and the second end, and the driving device is arranged at the connecting pipe.
As a further improvement of the invention, the driving means is a peristaltic pump arranged on the outer wall of the conduit.
As a further improvement of the invention, the driving device is a peristaltic pump arranged on the outer wall of the catheter and a balloon pump arranged on the catheter.
As a further improvement of the invention, the driving device is a one-way valve arranged on the catheter and a balloon pump arranged on the catheter.
As a further improvement of the invention, the driving device is a peristaltic pump disposed on an outer wall of the connecting tube.
As a further improvement of the invention, the driving device is a peristaltic pump arranged on the outer wall of the connecting pipe and a balloon pump arranged on the connecting pipe.
As a further improvement of the invention, the driving device is a one-way valve arranged on the connecting pipe and a balloon pump arranged on the connecting pipe.
As a further development of the invention, the first end and the second end of the conduit are arranged separately.
As a further development of the invention, the first end communicates directly with the second end.
As a further development of the invention, the first end and/or the second end is/are provided with a pressure sensor.
As a further improvement of the invention, the blood inlet is multiple; the blood outlet is a plurality of blood outlets.
As a further improvement of the invention, the blood inlets are provided with pressure sensors.
As a further improvement of the invention, the blood outlets are provided with pressure sensors.
As a further improvement of the invention, the first end and the second end are different parts of the same pipe, and the first end and the second end are directly communicated.
As a further improvement of the invention, the guide wire is arranged at the first end and/or the second end of the catheter, and the catheter is guided into the body by the guide wire.
The invention also provides a heart double-circulation blood assisting method, which comprises the following steps:
s1, respectively guiding a first catheter and a second catheter into a body, wherein the first catheter and the second catheter are respectively provided with a first end and a second end, and one part of each of the first catheter and the second catheter is placed outside the body;
s2, placing a blood inlet at the first end of the first conduit into a left ventricle in a body, and sucking blood into the first conduit from the left ventricle through the blood inlet under the action of a driving device; placing a blood inlet at the first end of a second catheter in the right ventricle of the body, and sucking blood from the right ventricle into the second catheter through the blood inlet under the action of a driving device;
s3, placing the blood outlet of the second end of the first conduit in the aorta in the body, and under the action of a driving device, enabling the blood in the first conduit to pass through the blood outlet of the second end of the first conduit and to be perfused back to the aorta in the body through the blood outlet of the second end of the first conduit; placing the blood outlet of the second end of the second conduit in the pulmonary artery in the body, and under the action of a driving device, perfusing the blood in the second conduit to the pulmonary artery through the blood outlet of the second end of the second conduit.
As a further development of the invention, the drive device is arranged outside the body.
As a further improvement of the invention, a connecting pipe is arranged between the first end of the conduit and the second end of the conduit, two ends of the connecting pipe are respectively connected with the first end and the second end, and the driving device is arranged at the connecting pipe.
As a further development of the invention, the drive means is a peristaltic pump arranged on the outer wall of the conduit.
As a further improvement of the invention, the driving device is a peristaltic pump arranged on the outer wall of the catheter and a balloon pump arranged on the catheter.
As a further improvement of the invention, the driving device is a one-way valve arranged on the catheter and a balloon pump arranged on the catheter.
As a further improvement of the invention, the driving device is a peristaltic pump disposed on an outer wall of the connecting tube.
As a further improvement of the invention, the driving device is a peristaltic pump arranged on the outer wall of the connecting pipe and a balloon pump arranged on the connecting pipe.
As a further improvement of the invention, the driving device is a one-way valve arranged on the connecting pipe and a balloon pump arranged on the connecting pipe.
As a further development of the invention, the first end and the second end of the conduit are arranged separately.
As a further development of the invention, the first end communicates directly with the second end.
As a further development of the invention, the first end and/or the second end is/are provided with a pressure sensor.
As a further improvement of the present invention, the blood inlet is plural; the blood outlet is a plurality of blood outlets.
As a further improvement of the invention, the blood inlets are provided with pressure sensors.
As a further improvement of the invention, the blood outlets are provided with pressure sensors.
As a further development of the invention, the first catheter and the second catheter are guided into the body by means of guide wires.
The invention also provides an operation method for assisting the blood circulation of the heart of the human body, which comprises the following steps:
s1, guiding a first end of a catheter to enter a ventricle (such as a left ventricle and a right ventricle) of a heart of a human body and guiding a second end of the catheter to enter an artery (such as an aorta, a pulmonary artery and the like) of the human body by using a guide wire;
s2, sucking blood from ventricles (such as a left ventricle and a right ventricle) of a heart of a human body into the first end of the catheter through a blood inlet at the first end of the catheter under the action of an extracorporeal drive device;
and S3, under the action of an extracorporeal drive device, enabling the blood in the first end of the catheter to pass through the second end of the catheter, and perfusing the blood back into an artery (such as an aorta, a pulmonary artery and the like) of the human body through a blood outlet of the second end of the catheter.
As a further development of the invention, the first end and/or the second end is provided with a pressure sensor.
As a further development of the invention, the drive means convey the blood from the first end to the second end in dependence on the signal of the pressure sensor.
As a further development of the invention, the first end of the catheter communicates with the second end outside the body.
As a further improvement of the invention, a connecting pipe is arranged between the first end of the conduit and the second end of the conduit, two ends of the connecting pipe are respectively connected with the first end and the second end, and the driving device is arranged at the connecting pipe.
As a further development of the invention, the drive means is a peristaltic pump arranged on the outer wall of the conduit.
As a further improvement of the invention, the driving device is a peristaltic pump arranged on the outer wall of the catheter and a balloon pump arranged on the catheter.
As a further improvement of the invention, the driving device is a one-way valve arranged on the catheter and a balloon pump arranged on the catheter.
As a further improvement of the invention, the driving device is a peristaltic pump disposed on an outer wall of the connecting tube.
As a further improvement of the invention, the driving device is a peristaltic pump arranged on the outer wall of the connecting pipe and a balloon pump arranged on the connecting pipe.
As a further improvement of the invention, the driving device is a one-way valve arranged on the connecting pipe and a balloon pump arranged on the connecting pipe.
As a further improvement of the present invention, the first end and the second end are separately provided.
As a further improvement of the invention, the first end and the second end are two sections of the same pipe respectively.
As a further improvement of the invention, the first end and the second end are two ends of a pipe which are directly communicated.
As a further improvement of the present invention, the blood inlet is plural; the blood outlet is a plurality of blood outlets.
As a further improvement of the invention, the blood inlets are provided with pressure sensors.
As a further improvement of the invention, the blood outlets are provided with pressure sensors.
The invention has the beneficial effects that: through the scheme, mainly comprise pipe and drive arrangement, simple structure, it is small, when implanting, only need implant the first end and the second end of pipe, it is convenient to implant, and drive arrangement's part need not to contact blood, has simplified the pump body greatly and has intervened the complexity of body tube way, has reduced blood circulation system's implantation, has caused the burden for the health in the use to very big reduction cost and convenient degree, the durability of system.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other solutions can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of a blood circulation assistance system of the present invention.
FIG. 2 is a schematic diagram of a blood circulation assistance system of the present invention employing a peristaltic pump.
Fig. 3 is a schematic diagram of a blood circulation auxiliary system according to the present invention, which employs a peristaltic pump and a balloon pump.
Fig. 4 is a schematic diagram of a blood circulation assistance system of the present invention employing a balloon pump.
Fig. 5 is a schematic view of the operation of a blood circulation assistance device of the present invention.
Fig. 6 is a schematic diagram of the application of the heart double circulation blood assisting method of the invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention is further described in the following description and embodiments with reference to the drawings.
Example one
As shown in fig. 1, a blood circulation assistance system includes a catheter portion 100 disposed inside a body and a driving device 200 disposed outside the body, wherein the catheter portion 100 includes a first end 101 and a second end 102 separately disposed, the first end 101 is provided with a blood inlet 1011, and the second end 102 is provided with a blood outlet 1021.
Preferably, the first end 101 and the second end 102 are different parts of the same tube, the first end and the second end are directly communicated, and the driving device 200 is arranged at an extracorporeal catheter connecting the first end 101 of the catheter and the second end 102 of the catheter. The drive means 200 is now a peristaltic pump arranged on the outer wall of the catheter. By using the peristaltic pump, moving parts and parts in the pump body do not need to contact blood, thereby greatly simplifying the complexity of the pump body and the pipeline intervening in the body; through this scheme has solved traditional blood auxiliary device and has implanted through the mode of surgery to because intervene the internal part, all have the movable part that needs contact with blood, surgery implantation wound is great, can cause the influence to blood moreover, brings the thrombus scheduling problem.
As an alternative to the driving means 200, the driving means may be a combined driving assembly consisting of a peristaltic pump provided on the outer wall of the catheter and a balloon pump provided on the catheter; the driving device can also be a combined driving assembly consisting of a one-way valve arranged on the catheter and a balloon pump arranged on the catheter.
Preferably, a connection pipe may be further provided between the first end 101 of the guide pipe and the second end 102 of the guide pipe, and both ends of the connection pipe are respectively connected to the first end and the second end, and the driving device 200 is provided at the connection pipe. At this time, the driving device 200 is a peristaltic pump arranged on the outer wall of the connecting pipe, or a peristaltic pump arranged on the outer wall of the connecting pipe and a balloon pump arranged on the connecting pipe, or a one-way valve arranged on the connecting pipe and a balloon pump arranged on the connecting pipe.
With the system of this embodiment, the first end 101 is a blood inlet tube, the second end 102 is a blood outlet tube, and blood can be pumped from the blood inlet 1011 of the first end 101 to the blood outlet 1021 of the second end 102 by the extracorporeal drive device 200 under the control of the control unit, so as to achieve blood circulation assistance.
The first end 101 and the second end 102 may span the valve, placing the blood inlet 1011 in a ventricle (e.g., left ventricle, right ventricle), and the blood outlet 1021 in an arterial (e.g., aorta, pulmonary artery, etc.) vessel, enabling blood circulation between the ventricle (e.g., left ventricle, right ventricle) and the arterial vessel.
The first end 101 or the second end 102 to be inserted into the body may be connected or separated in some way, and the distance between the blood inlet 1011 and the blood outlet 1021 may be adjusted according to clinical needs.
The drive unit 200 is placed outside the body and does not need to contact blood, greatly simplifying the complexity of the pump body and intervening body vessels.
When the blood inlet and outlet pipes of the driving device 200 are separately arranged, the blood inlet pipe (i.e. the first end 101) and the blood outlet pipe (i.e. the second end 102) are separately connected to the driving device 200, and the two pipes are separately arranged, and the distance between the blood inlet pipe and the blood outlet pipe can be adjusted according to the interventional operation process or the distance between the blood inlet pipe and the blood outlet pipe after the operation. The pipeline that gets into and discharge with blood on the pump body separately sets up in this scheme for blood admission pipe and blood discharge pipe are independently connected to drive arrangement's position respectively, because two pipe ends separate set up, need not like among the prior art again, must utilize the check valve to control two pipelines, and can be according to the adjustment of intervene operation process or after the operation to the distance between blood admission pipe, the blood discharge pipe.
Example two
On the basis of the foregoing embodiment, the following can be further improved:
as shown in fig. 2, a pressure sensor 103 for feeding back blood pressure to the driving device 200 is disposed at a port of the first end 101 and/or the second end 102, in this embodiment, the pressure sensor 103 is preferably disposed at the port of the first end 101, and the blood pressure can be detected by the pressure sensor 103.
A pressure sensor 103 may be provided at either the port of the first end 101 or the port of the second end 102 as desired. The pressure sensor can be selected from optical fiber pressure sensors and other sensors capable of realizing corresponding pressure sensing, the pressure sensor 103 transmits a real-time blood pressure signal to an extracorporeal control unit, and the control unit dynamically controls the driving device 200 through the 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 blood circulation assistance is realized.
The driving device 200 comprises a peristaltic pump 201 and a connecting tube 202, wherein the blood flow speed can be adjusted according to the blood pressure, and the peristaltic pump 201 is not contacted with the blood during circulation.
The peristaltic pump 201 is installed on the outer wall of the connecting pipe 202, the peristaltic pump 201 does not directly contact with blood, and blood flow is pumped by alternately squeezing and releasing the connecting pipe 202, so that the function of blood transmission is realized. The connection tube 202 includes a blood introduction portion 2021 and a blood discharge portion 2022, a blood input port of the blood introduction portion 2021 of the connection tube 202 is connected to the first end 101, and a blood output port of the blood discharge portion 202 of the connection tube 202 is connected to the second end 102.
The peristaltic pump 201 is placed outside the body and does not need to contact blood, greatly simplifying the complexity of the pump body and intervening in the body tubing.
The first end 101 is provided with at least one blood inlet 1011, that is, a single blood inlet 1011 or a plurality of blood inlets 1011 can be provided according to the requirement, and a single port or a plurality of ports can be provided according to the clinical requirement. In order to facilitate accurate sensing of pressure and grasp more comprehensive pressure numerical information, pressure sensors can be arranged at each blood inlet and each blood outlet, corresponding pressure numerical information is comprehensively obtained after the sensing of a plurality of positions is analyzed and compared, and the control of blood auxiliary transmission is realized more efficiently.
The second end 102 is provided with at least one blood outlet 1021, that is, a single blood outlet 1021 or a plurality of blood outlets 1021 can be provided according to the requirement, and a single port or a plurality of ports can be provided according to the clinical requirement.
The blood inlet 1011 may open on a side wall or port of the first end 101.
The blood outlet 1021 may open into a side wall or port of the second end 102.
EXAMPLE III
On the basis of the foregoing embodiment, the following can be further improved:
as shown in fig. 3, a pressure sensor 103 for feeding back blood pressure to the driving device 200 is disposed at a port of the first end 101 and/or the second end 102, in this embodiment, the pressure sensor 103 is preferably disposed at the port of the first end 101, and the blood pressure can be detected by the pressure sensor 103.
The driving device 200 comprises a peristaltic pump 201, a connecting pipe 202 and a balloon pump 203, wherein the peristaltic pump 201 and the balloon pump 203 can adjust the blood flow speed according to the blood pressure, and in the circulation process, the peristaltic pump 201 and the balloon pump 203 are not in contact with blood and are both arranged outside the body without being in contact with the blood, so that the complexity of a pump body and the complexity of an intervening pipeline in the body are greatly simplified.
The present embodiment provides a driving force for the circulation of blood by means of a peristaltic pump 201 in combination with a balloon pump 203.
The peristaltic pump 201 is mounted on an outer wall of the connection tube 202, the connection tube 202 includes a blood introducing portion 2021 and a blood discharging portion 2022, a blood input port of the blood introducing portion 2021 of the connection tube 202 is connected to the first end 101, and a blood output port of the blood discharging portion 202 of the connection tube 202 is connected to the second end 102.
The balloon pump 203 is mounted on the blood-leading portion 2022 of the connection tube 202.
Example four
On the basis of the foregoing embodiment, the following can be further improved:
as shown in fig. 4, a pressure sensor 103 for feeding back blood pressure to the driving device 200 is disposed at a port of the first end 101 and/or the second end 102, in this embodiment, the pressure sensor 103 is preferably disposed at the port of the first end 101, and the blood pressure can be detected by the pressure sensor 103.
The driving device 200 comprises a balloon pump 203 and a one-way valve 204, the balloon pump 203 is connected with the first end 101 through the one-way valve 204, the balloon pump 203 is connected with the second end 102 through the one-way valve 204, and one-way flow of blood can be limited through the two one-way valves 204.
The present embodiment employs a balloon pump 203 to provide the driving force for the circulation of blood.
The balloon pump 203 is placed outside the body and does not need to contact blood, greatly simplifying the complexity of the pump body and intervening body ducts.
EXAMPLE five
As shown in fig. 5, a blood circulation assistance device comprises a catheter portion disposed inside a body and a driving device disposed outside the body, wherein the catheter portion comprises a first end 12 of a catheter and a second end 14 of the catheter, the first end 12 of the catheter is used for conveying blood sucked from a ventricle (such as a left ventricle and a right ventricle) and the second end 14 of the catheter is used for conveying the blood discharged from the driving device to an artery (such as an aorta, a pulmonary artery and the like), the first end 12 of the catheter is provided with a blood inlet 11 for sucking the blood from the ventricle (such as the left ventricle and the right ventricle), and the second end 14 of the catheter is provided with a blood outlet 13 for perfusing the blood back to the artery (such as the aorta, the pulmonary artery and the like).
The first end 12 and/or the second end 14 of the catheter is provided with a guide wire 9 for guiding the catheter to a designated position.
A pressure sensor 10 capable of feeding back blood pressure and synchronizing the pulsation of the heart is arranged at a port of the first end 12 and/or the second end 14 of the catheter.
And the driving device is used for providing driving force required by blood circulation and providing power for blood to enter from the blood inlet and to be discharged from the blood outlet.
The drive means comprises a peristaltic pump 15 by which a driving force can be provided for the flow of blood.
The functions of each component of the equipment are as follows:
the guide wire 9 is used for assisting the catheter to be pushed to a designated position;
the pressure sensor 10 can detect the pressure in the heart and transmit the real-time blood pressure signal to the control unit, and the control unit dynamically controls the driving device through the blood pressure signal, so that the synchronous heart pulsation control is realized conveniently;
the blood inlet 11 is used to draw blood from the ventricles (e.g. left ventricle, right ventricle);
the catheter first end 12 is used to deliver blood drawn from a heart chamber (e.g., left ventricle, right ventricle) to a peristaltic pump;
the blood outlet 13 is used to perfuse blood from the port back into an artery (e.g., aorta, pulmonary artery, etc.);
the second end 14 of the catheter is used to deliver blood from the peristaltic pump to an artery (e.g., aorta, pulmonary artery, etc.);
peristaltic pump 15 is used in the case of synchronous cardiac pacing to transport blood, increase pressure as required, and perfuse blood back into arteries (e.g., aorta, pulmonary artery, etc.).
The human heart system comprises a right atrium 1, a right ventricle 2, a left atrium 3, a left ventricle 4, an aortic valve 5 and an aorta, wherein the aorta further comprises an ascending aorta 6, a descending aorta 7 and an aortic arch 8, the scheme is used for the positions of the left ventricle and the aorta of the heart, the first end 12 enters the left ventricle 4 through the aortic valve 5 under the guidance of a guide wire 9 through the vascular intracavity technology, the work of a pressure sensor 10 is used for synchronizing the pulsation of the heart, blood enters the first end 12 from a blood inlet 11 and finally enters a driving device peristaltic pump 15, and the driving device peristaltic pump 15 is used for perfusing the blood back to the aorta from a blood outlet 13 through a second end 14 so as to achieve the auxiliary ventricular work.
EXAMPLE six
On the basis of the use of the aforementioned blood assistance device, there may be further implementations: as shown in fig. 6, a cardiac double-circulation blood assistance system and method with two ventricular blood assistance devices working simultaneously is provided, which comprises the following steps:
the blood-assisted double circulation is achieved using a first catheter and a second catheter, a guide wire being provided at the end of each catheter, a pressure sensor being provided on each catheter, said each catheter comprising a first end 12, 12 'and a second end 14, 14', said first end being in communication with said second end extracorporeally, a drive means being provided extracorporeally.
Under the guide of the guide wire 9, respectively guiding a first catheter and a second catheter into a body, wherein in one circulation, a first end 12 of the first catheter enters a left ventricle 4 through an aortic valve 5, the heart is synchronized to beat through the work of the pressure sensor 10, and a real-time blood pressure signal is transmitted to a control unit outside the body, the control unit dynamically controls a driving device through the blood pressure signal, blood in the left ventricle 4 enters the first end 12 of the first catheter from a blood inlet 11 under the action of a peristaltic pump 15 of the driving device, and the blood is perfused back to the aorta from a blood outlet 13 on a second end 14 of the first catheter through a second end 14 of the first catheter under the action of the peristaltic pump 15 of the driving device.
In another cycle, under the guidance of the guide wire 9, the first end 12' of the second catheter enters the right ventricle, the pulse of the heart is synchronized through the operation of the pressure sensor 10', and a real-time blood pressure signal is transmitted to the control unit, the control unit dynamically controls the driving device through the blood pressure signal, and under the action of the peristaltic pump 15' of the driving device, the blood in the right ventricle 2 enters the first end 12' of the second catheter from the blood inlet 11', and the blood is perfused back to the pulmonary artery 16 from the blood outlet 13' on the second end of the second catheter through the second end 14' of the second catheter.
The two catheters work simultaneously to realize two blood circulation processes so as to achieve the purpose that the two ventricular blood auxiliary devices realize the heart double-circulation auxiliary ventricular work.
The invention provides a blood circulation auxiliary method, equipment and a system, which relate to the technical field of interventional therapy and can realize the assistance of blood circulation, such as in the scene of in vitro left ventricle assistance and the like; the product can be used for interventional adjuvant therapy for a long time, the service life can be 3 months to half a year or more, and the product has high installation performance and durability.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments and it is not intended to limit the invention to the specific embodiments described. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the inventive concept, and all should be considered as belonging to the protection scope of the present invention.

Claims (82)

1. A method of assisting blood circulation, comprising the steps of:
s1, guiding a catheter into a body, wherein the catheter is provided with a first end and a second end, and one part of the catheter is placed outside the body;
s2, placing a blood inlet at the first end of the catheter at a first position in a body, and sucking blood from the first position into the catheter through the blood inlet under the action of a driving device;
and S3, placing the blood outlet of the second end of the catheter at a second position in the body, and under the action of a driving device, enabling the blood in the catheter to flow through the second end of the catheter and perfuse the blood back to the second position in the body through the blood outlet of the second end of the catheter.
2. A method of assisting blood circulation according to claim 1, wherein the drive device is provided extracorporeally.
3. A method according to claim 1, wherein a connecting tube is provided between the first end of the catheter and the second end of the catheter, the first end and the second end are connected to both ends of the connecting tube, respectively, and the driving device is provided at the connecting tube.
4. A method according to claim 1 or claim 2, wherein the drive means is a peristaltic pump provided on the outer wall of the conduit.
5. A method as claimed in claim 1 or 2, wherein the drive means is a peristaltic pump provided on the outer wall of the catheter and a balloon pump provided on the catheter.
6. A method as claimed in claim 1 or claim 2 wherein the drive means is a one-way valve provided on the catheter and a balloon pump provided on the catheter.
7. A method according to claim 3, wherein the driving means is a peristaltic pump provided on an outer wall of the connecting tube.
8. A method according to claim 3, wherein the driving means is a peristaltic pump provided on an outer wall of the connection tube and a balloon pump provided on the connection tube.
9. A method according to claim 3, wherein the driving means is a one-way valve provided on the connection tube and a balloon pump provided on the connection tube.
10. A method as claimed in any preceding claim, wherein the first and second ends are provided separately.
11. A method as claimed in any preceding claim, wherein the first end is in direct communication with the second end.
12. A method as claimed in any preceding claim, wherein a pressure sensor is provided at the first and/or second end.
13. A method according to any preceding claim, wherein the blood inlet is plural; the blood outlet is a plurality of blood outlets.
14. A method as claimed in any preceding claim, wherein a pressure sensor is provided at each of the blood inlets.
15. A method as claimed in any preceding claim, wherein the blood outlets are each provided with a pressure sensor.
16. A method as claimed in any preceding claim, wherein the first location is within a ventricle of the human body and the second location is within an artery of the human body.
17. A method as claimed in any preceding claim, wherein the catheter is guided into the body by a guide wire.
18. A blood circulation assistance device comprising a conduit and a drive means, the conduit comprising a first end and a second end;
the first end is disposed at a first location in the body and the second end is disposed at a second location in the body;
the first end is in communication with the second end extracorporeally;
the driving device is arranged outside the body and is used for providing power for blood circulation for the blood circulation auxiliary equipment; the first end is provided with a blood inlet, and the second end is provided with a blood outlet.
19. A blood circulation assistance device according to claim 18 wherein a connecting tube is provided between the first end of the conduit and the second end of the conduit, the first and second ends being connected to respective ends of the connecting tube, the drive means being provided at the connecting tube.
20. A blood circulation assistance device according to claim 18 wherein the drive means is a peristaltic pump disposed on an outer wall of the conduit.
21. A blood circulation assistance device according to claim 18 wherein the drive means is a peristaltic pump provided on the outer wall of the conduit and a balloon pump provided on the conduit.
22. A blood circulation assistance device according to claim 18 wherein the actuation means is a one way valve provided on the catheter and a balloon pump provided on the catheter.
23. A blood circulation assistance device according to claim 19 wherein the drive means is a peristaltic pump provided on the outer wall of the connecting tube.
24. A blood circulation assistance device according to claim 19 wherein the drive means is a peristaltic pump provided on the outer wall of the connecting tube and a balloon pump provided on the connecting tube.
25. A blood circulation assistance device according to claim 19 wherein the actuation means is a one way valve provided on the connecting tube and a balloon pump provided on the connecting tube.
26. A blood circulation assistance device according to any one of the preceding claims wherein the first and second ends are provided separately.
27. A blood circulation assistance device according to any one of the preceding claims wherein the first end is in direct communication with the second end.
28. A blood circulation assistance device according to any one of the preceding claims wherein the first and/or second ends have pressure sensors thereon.
29. A blood circulation assistance device according to any one of the preceding claims wherein the blood inlet is plural; the blood outlet is a plurality of blood outlets.
30. A blood circulation assistance device according to any one of the preceding claims wherein the blood inlets are each provided with a pressure sensor.
31. A blood circulation assistance device according to any one of the preceding claims wherein the blood outlets are each provided with a pressure sensor.
32. A blood circulation assistance device according to any one of the preceding claims wherein the first and second ends are different parts of the same tube, the first and second ends being in direct communication.
33. A blood circulation assistance device according to any one of the preceding claims wherein the first location is within a ventricle of the human body and the second location is within an artery of the human body.
34. A blood circulation assistance system comprising: a guide wire, a pressure sensor, a catheter and a driving device;
the guide wire is arranged at the end part of the catheter;
the pressure sensor is arranged on the conduit;
the catheter comprises a first end and a second end, the first end in extracorporeal communication with the second end;
the driving device is arranged outside the body;
the first end is provided with a blood inlet, and the second end is provided with a blood outlet;
the blood inlet is used for sucking blood from a ventricle;
the first end is used for conveying blood sucked through the blood inlet;
the driving device is used for transmitting the blood from the first end to the second end according to the signal of the pressure sensor; the second end is used for conveying blood to the blood outlet;
the blood outlet is for perfusing blood in the second end back into the artery.
35. A blood circulation assistance system according to claim 34 wherein a connecting tube is provided between the first end of the conduit and the second end of the conduit, the first end and the second end being connected at opposite ends of the connecting tube, respectively, and the drive means being provided at the connecting tube.
36. A blood circulation assistance system according to claim 34 wherein the drive means is a peristaltic pump disposed on an outer wall of the conduit.
37. A blood circulation assistance system according to claim 34 wherein the drive means is a peristaltic pump provided on the outer wall of the conduit and a balloon pump provided on the conduit.
38. A blood circulation assistance system according to claim 34 wherein the actuation means is a one-way valve provided on the catheter and a balloon pump provided on the catheter.
39. A blood circulation assistance system according to claim 35 wherein the drive means is a peristaltic pump disposed on an outer wall of the connecting tube.
40. A blood circulation assistance system according to claim 35 wherein the drive means is a peristaltic pump provided on the outer wall of the connecting tube and a balloon pump provided on the connecting tube.
41. A blood circulation assistance system according to claim 35 wherein the actuation means is a one-way valve provided on the connecting tube and a balloon pump provided on the connecting tube.
42. A blood circulation assistance system according to any one of the preceding claims wherein the first and second ends of the conduit are provided separately.
43. A blood circulation assistance system according to any one of the preceding claims wherein the first end is in direct communication with the second end.
44. A blood circulation assistance system according to any one of the preceding claims wherein the first and/or second end has a pressure sensor thereon.
45. A blood circulation assistance system according to any one of the preceding claims wherein the blood inlet is plural; the blood outlet is a plurality of blood outlets.
46. A blood circulation assistance system according to any one of the preceding claims wherein the blood inlets are each provided with a pressure sensor.
47. A blood circulation assistance system according to any one of the preceding claims wherein the blood outlets are each provided with a pressure sensor.
48. A blood circulation assistance system according to any one of the preceding claims wherein the first and second ends are different parts of the same tube, the first and second ends being in direct communication.
49. A blood circulation assistance system according to any one of the preceding claims wherein the guide wire is provided at the first and/or second end of the catheter, the catheter being guided into the body by the guide wire.
50. A method of cardiac double-circulation blood assist comprising the steps of:
s1, respectively guiding a first catheter and a second catheter into a body, wherein the first catheter and the second catheter are respectively provided with a first end and a second end, and one part of the first catheter and one part of the second catheter are arranged outside the body;
s2, placing a blood inlet at the first end of the first conduit into a left ventricle in a body, and sucking blood into the first conduit from the left ventricle through the blood inlet under the action of a driving device; placing a blood inlet at the first end of a second catheter in the right ventricle of the body, and sucking blood from the right ventricle into the second catheter through the blood inlet under the action of a driving device;
s3, placing the blood outlet of the second end of the first conduit in the aorta in the body, and under the action of a driving device, enabling the blood in the first conduit to pass through the blood outlet of the second end of the first conduit and to be perfused back to the aorta in the body through the blood outlet of the second end of the first conduit; and placing the blood outlet of the second end of the second conduit in the pulmonary artery in the body, and under the action of the driving device, perfusing the blood in the second conduit to the pulmonary artery through the blood outlet of the second end of the second conduit.
51. A cardiac double circulation blood assist method as in claim 50 wherein the drive means is located extracorporeally.
52. A method as claimed in claim 50 or 51 wherein a connecting tube is provided between the first end of the catheter and the second end of the catheter, the first end and the second end being connected to the respective ends of the connecting tube, and the driving means being provided at the connecting tube.
53. A cardiac double circulation blood assist method as claimed in claim 50 or 51 wherein the drive means is a peristaltic pump disposed on the outer wall of the conduit.
54. A cardiac bi-circulatory blood assist method as claimed in claim 50 or 51 wherein the drive means is a peristaltic pump provided on the outer wall of the catheter and a balloon pump provided on the catheter.
55. A cardiac bi-circulatory blood assist method as claimed in claim 50 or 51 wherein the drive means is a one-way valve provided on the catheter and a balloon pump provided on the catheter.
56. A cardiac dual cycle blood assist method as recited in claim 52 wherein the driving means is a peristaltic pump disposed on an outer wall of the connecting tube.
57. A cardiac bi-circulatory blood assist method as claimed in claim 52 wherein the drive means is a peristaltic pump provided on the outer wall of the connecting tube and a balloon pump provided on the connecting tube.
58. A cardiac bi-circulating blood assist method as claimed in claim 52 wherein the drive means is a one-way valve provided on the connecting tube and a balloon pump provided on the connecting tube.
59. A cardiac bi-circulatory blood assist method as claimed in any one of the preceding claims wherein the first and second ends of the conduit are provided separately.
60. A cardiac bi-circulatory blood assist method as claimed in any of the preceding claims wherein the first end is in direct communication with the second end.
61. A cardiac double circulation blood assist method as in any one of the preceding claims wherein the first and/or second ends have pressure sensors thereon.
62. A cardiac double circulation blood assistance method according to any one of the preceding claims wherein the blood inlet is plural; the blood outlet is a plurality of blood outlets.
63. A cardiac double circulation blood assistance method according to any one of the preceding claims wherein a pressure sensor is provided at each of the blood inlets.
64. Method of cardiac double circulation blood assistance according to any one of the preceding claims, wherein the blood outlets are each provided with a pressure sensor.
65. The cardiac bi-circulatory blood assist method as claimed in any one of the preceding claims wherein the first and second catheters are guided into the body by a guide wire.
66. An operating method for assisting the blood circulation of a human heart, comprising the following steps:
s1, guiding a first end of a catheter to enter a ventricle of a heart of a human body and guiding a second end of the catheter to enter an artery of the human body by using a guide wire;
s2, sucking blood from a ventricle of a heart of a human body into the first end of the catheter through a blood inlet at the first end of the catheter under the action of an extracorporeal drive device;
and S3, under the action of an extracorporeal drive device, enabling the blood in the first end of the catheter to pass through the second end of the catheter and to be perfused back into the artery of the human body through a blood outlet of the second end of the catheter.
67. An operation method for assisting blood circulation in a human heart according to claim 66, wherein the first end and/or the second end is/are provided with a pressure sensor.
68. An operating method for assisting blood circulation in a human heart according to any of the preceding claims, wherein the driving means is adapted to convey blood from the first end to the second end in response to a signal from a pressure sensor.
69. An operating method for assisting blood circulation in a human heart according to any of the preceding claims, wherein the first end and the second end of the catheter communicate extracorporeally.
70. An operation method for assisting blood circulation in human heart according to claim 66, wherein a connecting tube is provided between the first end of the catheter and the second end of the catheter, the two ends of the connecting tube are respectively connected with the first end and the second end, and the driving device is provided at the connecting tube.
71. An operation method for assisting blood circulation in a human heart according to claim 66, wherein the driving means is a peristaltic pump disposed on an outer wall of the catheter.
72. An operation method for assisting blood circulation in human heart according to claim 66, wherein said driving means is a peristaltic pump disposed on an outer wall of said catheter and a balloon pump disposed on the catheter.
73. An operating method for assisting blood circulation in a human heart according to claim 66, wherein the driving means is a one-way valve provided on the catheter and a balloon pump provided on the catheter.
74. An operation method for assisting blood circulation in human heart according to claim 70, wherein said driving means is a peristaltic pump disposed on an outer wall of said connection tube.
75. An operation method for assisting blood circulation in human heart according to claim 70, wherein the driving device is a peristaltic pump disposed on an outer wall of the connection tube and a balloon pump disposed on the connection tube.
76. An operation method for assisting blood circulation in human heart according to claim 70, wherein said driving means is a one-way valve provided on said connection tube and a balloon pump provided on the connection tube.
77. An operating method for assisting blood circulation in a human heart according to any one of the preceding claims, wherein the first end and the second end are separately provided.
78. An operation method for assisting blood circulation in a human heart according to any one of the preceding claims, wherein the first end and the second end are two sections of the same tube.
79. An operating method for assisting blood circulation in a human heart according to any of the preceding claims, wherein the first end and the second end are two ends of a tube in direct communication.
80. An operating method for assisting the circulation of blood in the heart of a human being according to any one of the preceding claims, wherein said blood inlet is plural; the blood outlet is a plurality of blood outlets.
81. An operating method for assisting the circulation of blood in the heart of a human being according to any one of the preceding claims, wherein a pressure sensor is arranged at each of the blood inlets.
82. An operating method for assisting the blood circulation of the heart of a human body as claimed in any one of the preceding claims, wherein the blood outlets are each provided with a pressure sensor.
CN202211260644.5A 2022-10-14 2022-10-14 Blood circulation auxiliary method, device and system Pending CN115487414A (en)

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