CN107080870B - Blood pump and making assisted circulation of ventriculus cordis device - Google Patents
Blood pump and making assisted circulation of ventriculus cordis device Download PDFInfo
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- CN107080870B CN107080870B CN201610087525.2A CN201610087525A CN107080870B CN 107080870 B CN107080870 B CN 107080870B CN 201610087525 A CN201610087525 A CN 201610087525A CN 107080870 B CN107080870 B CN 107080870B
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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
- A61M60/20—Type thereof
- A61M60/205—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
- A61M60/10—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
- A61M60/148—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 in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart 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
- A61M60/40—Details relating to driving
-
- 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
- A61M2205/3327—Measuring
-
- 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
-
- 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
- A61M2205/3368—Temperature
-
- 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
- A61M2210/125—Heart
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Anesthesiology (AREA)
- Mechanical Engineering (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
The present invention provides a kind of blood pump and making assisted circulation of ventriculus cordis devices, the blood pump includes shell, blade and actuator, the shell has first chamber and second chamber, the first chamber has entrance and exit, for being connected to the blood pump with external fluid, and fluid isolation between the first chamber and the second chamber；The blade is located at the first chamber, and at least part of the actuator is located at the second chamber, and the actuator is for driving the blade to rotate.Making assisted circulation of ventriculus cordis device applies the blood pump and is preferably comprised the imbedding piece being connected with the blood pump, and the imbedding piece forms channel of blood flow for being placed in vivo.The present invention carries out circulatory support to heart by blood pump, and therapeutic effect is good；And the present invention reduces operating difficulty by interventional therapy, reduces surgical wound surface；The present invention is by realizing blade and actuator fluid isolation the Reusability of driving part and structure member, reducing treatment cost simultaneously.
Description
Technical field
The invention belongs to the field of medical instrument technology, in particular to a kind of blood pump and making assisted circulation of ventriculus cordis device.
Background technique
Heart failure (abbreviation heart failure) refers to that obstacle occurs for the blood-pumping function due to heart, cannot fill venous return
Point discharge heart, so as to cause a kind of disease, acute heart failure and chronic heart failure can be divided into.Acute heart failure refer to acute attack or
The left heart function of exacerbation is abnormal, normal threat to life, it is necessary to urgent rescue.Chronic heart failure refers to persistently existing heart failure shape
State, general drug therapy is bad, can constantly deteriorate.
Currently, the problem of heart transplant is the best approach for the treatment of chronic heart failure, but there is donor wretched insufficiencies.Such as
It is more than every year 50000 people in the patient of hospital's registration waiting for heart transplantation, but only 2000 people can receive heart transplant in the U.S.
Operation.In addition, the high-risk patients with coronary heart disease that heart function is badly damaged, in patients with acute myocardial infarction heart failure and cardiogenic stop
Gram when, need to carry out before and after interventional therapy or surgical operation and whens Post-operative complications etc., it usually needs heart is followed
Ring is supported, patient is made to tide over a critical period.
For this purpose, some making assisted circulation of ventriculus cordis devices come into being, mainly there is implanted left ventricle ancillary equipment, in aorta
Ballon pump and external membrane lung system.Implanted left ventricle ancillary equipment can be chronically implanted, but need out chest, and surgical procedure is multiple
It is miscellaneous, it is not used to treatment acute heart failure, and expensive.Though intra-aortic balloon pump implantation is simple, auxiliaring effect is limited,
It is only capable of part auxiliary, it is substantially invalid to the patient of the complete failure of cardiac pumping function.Though the therapeutic effect of external membrane lung system is good,
But it is expensive, it can not Reusability.
Therefore, it is next to be clinically badly in need of a kind of simple and effective, at low cost, repeatedly used making assisted circulation of ventriculus cordis device at present
Meet Treatment need.
Summary of the invention
It is existing to solve the purpose of the present invention is to provide a kind of blood pump and the making assisted circulation of ventriculus cordis device of the application blood pump
Have in technology for accessory heart circulation assist existing for surgical procedure is cumbersome, treatment is limited, use cost is high
And it can not one or more problem in Reusability etc..
To achieve the above object and other related purposes, the present invention provides a kind of blood pumps, including shell, blade and driving
Part, the shell have first chamber and second chamber, and the first chamber has entrance and exit, for so that the blood pump
It is connected to external fluid, and fluid isolation between the first chamber and the second chamber；The blade is located at first chamber
Room, at least part of the actuator are located at the second chamber, and the actuator is for driving the blade to rotate.
It is preferred that the actuator includes a motor, the motor passes through motor shaft or the detachably connected institute of transmission shaft
Blade is stated, the motor is located in the second chamber, is provided with sealing element between the first chamber and the second chamber.
It is preferred that the blood pump further includes transition chamber thereof, it is set between the first chamber and the second chamber, it is described
Transition chamber thereof and the first chamber are in fluid communication, the transition chamber thereof and the second chamber fluid isolation, the motor shaft
Or transmission shaft passes through the transition chamber thereof and protrudes into the first chamber.
It is preferred that the actuator includes motor and driving magnet；Described at least part connection in the driving magnet
Motor, and drive the blade to rotate by magnetic force under the driving of the motor；At least part in the driving magnet
All it is located in the second chamber with the motor.
It is preferred that the driving magnet includes active magnet and passive magnet；The active magnet connects the motor and position
In the second chamber, the passive magnet connects the blade or is set to the inside of the blade, and the passive magnetic
Body is located in the first chamber.
It is preferred that the active magnet is identical with the magnetizing direction of passive magnet, and the active magnetic body is located at passive magnetic
On the magnetizing direction of body.
It is preferred that the driving magnet includes active magnet, the active magnet connects the motor and is located at described the
In two chambers, and the blade is made of magnetic material.
It is preferred that the actuator includes at least a motor stator, the electrode stator is set in the second chamber,
It is rotated by blade described in magnetic drive.
It is preferred that the actuator further includes a rotor, the rotor is set in the first chamber；Institute
It states the rotor connection blade or the rotor is set in the blade.
It is preferred that the blade is made of magnetic material.
It is preferred that the first chamber includes suction chamber and pumping chamber；According to flowing side of the blood flow in the first chamber
To the suction chamber is located at before the blade, and the pumping chamber is located at after the blade.
It is preferred that the suction chamber is in straight-tapered structure；The pumping chamber is isodistantly spaced helical structure.
It is preferred that being provided with transition chamber thereof between the first chamber and the second chamber for injecting anticoagulation medical fluid.
It is preferred that the shell includes first shell and second shell, the first shell forms the first chamber, described
Second shell forms the second chamber, and the first shell and the second shell are detachably connectable.
To achieve the above object and other related purposes, it is followed the present invention provides a kind of using the ventricle auxiliary of the blood pump
Loop device.
It is preferred that the making assisted circulation of ventriculus cordis device further includes the imbedding piece being connected with the blood pump, the imbedding piece is used
Channel of blood flow is formed in vivo in merging, and the blood pump provides pressure for the blood into the channel of blood flow, with circulation conveying
Blood.
It is preferred that the imbedding piece includes a catheter sheath, a fixed structure, the fixed knot are provided on the catheter sheath
Structure is used for the catheter sheath is fixed in the blood vessel.
It is preferred that the fixed structure is a sacculus in the making assisted circulation of ventriculus cordis device, the sacculus is led with described
Pipe sheath is connected；Wherein, at least one through-hole is provided on the catheter sheath, and the inside of the catheter sheath is formed with the first chamber
Body and the second cavity, the through-hole are connected to the sacculus and first cavity, are filled in first cavity for being passed through
It is full of the gas or liquid of the sacculus, second cavity is used to form channel of blood flow.
It is preferred that in the making assisted circulation of ventriculus cordis device, the fixed structure be one can the elastic portion restored of shape, institute
State that elastic portion is made of shape-memory material and the elastic portion is in nonlinear type shape.
It is preferred that the making assisted circulation of ventriculus cordis device further includes controller and company in the making assisted circulation of ventriculus cordis device
Connect the detection part of the controller；Wherein, the controller issues phase to the signal detected according to the detection part
The control signal answered is to the blood pump, to control the operating status of blood pump.
It is preferred that the detection part includes flow detection module, pressure detecting in the making assisted circulation of ventriculus cordis device
Module and temperature detecting module；The flow detection module is set in channel of blood flow, for obtaining velocity of blood flow；The pressure
Power detection module is set to the outlet and/or inlet of the blood pump, for obtaining blood stream pressure；The temperature detecting module is set
It is placed in channel of blood flow, for obtaining blood temperature.
Compared with prior art, blood pump and making assisted circulation of ventriculus cordis device provided by the present invention has the advantages that
1, the present invention carries out circulatory support to heart by blood pump, compared to diseases such as drug therapy similar heart functional failure
Disease, therapeutic effect are good；And the present invention is placed in vivo by the way of interventional therapy, that is, through imbedding piece, without carrying out
The similar surgical procedure for opening the complexity such as chest, reduces operating difficulty, surgical wound surface is small, and the rehabilitation of chronic heart failure may be implemented
Treatment, it can repeatedly implement to treat with some cycles；And the present invention partially or completely serves as the pump blood of heart by blood pump
Function, interventional procedure are simple；The present invention is by realizing driving part and knot for blade and actuator fluid isolation simultaneously
The Reusability of structure component, reduces treatment cost；
2, making assisted circulation of ventriculus cordis device of the invention includes dismountable blood pump, and blood pump includes blade, shell and actuator,
Shell includes first shell and second shell, and the two is detachably connectable, and blade is arranged in first shell, in this way convenient for more
Exchange blood transfusion each component pumped, and on the other hand, part driving part and blood are contactless, reusable to reduce treatment cost；
3, blood pump of the invention is driven by motor direct-drive or by magnetic coupling or magnetic suspension, part configuration
Few, structure is simple, effectively reduces device quality and usable floor area, while simplifying driving process.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the making assisted circulation of ventriculus cordis device of the magnetic coupling type of one embodiment of the invention；
Fig. 2 is the structural schematic diagram of the entrance member of one embodiment of the invention；
Fig. 3 is the longitudinal sectional view of entrance member shown in Fig. 2；
Fig. 4 is the structural schematic diagram of the outlet member of one embodiment of the invention；
Fig. 5 is the longitudinal sectional view of outlet member shown in Fig. 4；
Fig. 6 is the partial schematic diagram that the sacculus of one embodiment of the invention is connect with catheter sheath；
Fig. 7 is the longitudinal sectional view that sacculus shown in fig. 6 is connect with catheter sheath；
Fig. 8 is the sacculus of another embodiment of the present invention and the partial sectional view that catheter sheath is connect；
Fig. 9 is that multiple sacculus of further embodiment of this invention are circumferentially distributed in the partial schematic diagram on catheter sheath；
Figure 10 is the partial schematic diagram of the catheter sheath of one embodiment of the invention；
Figure 11 is the structural schematic diagram of the blood pump of the making assisted circulation of ventriculus cordis device of the Mechanical Sealed Type of one embodiment of the invention；
Figure 12 is the structural schematic diagram of the blood pump of the making assisted circulation of ventriculus cordis device of the magnetic coupling type of one embodiment of the invention；
Figure 13 is the structural schematic diagram of the blood pump of the making assisted circulation of ventriculus cordis device of the electromagnetic levitation type of one embodiment of the invention.
Detailed description of the invention in figure is as follows:
100- imbedding piece；1010- entrance member；1011- entry conductor sheath；1012- entrance expansion pipe；1020- outlet member；
1021- delivery channel sheath；1022- export expansion pipe；1030- fixed structure；1040- through-hole；1050- deflector hole；1060- is quick
Connector；200- blood pump；2011- shell；2011a- first shell；2011b- second shell；2012- blade；The first chamber of 2013-
Room；2014- second chamber；2015- entrance；The outlet 2016-；2017- suction chamber；2018- transition chamber thereof；2020- motor；
2021- motor shaft；2022- transmission shaft；2023- sealing element；2024- active magnet；The passive magnet of 2025-；2026- isolation junction
Structure；2027- motor stator；2028- rotor；2029- entrance pipe；2030- export pipeline.
Specific embodiment
To keep the contents of the present invention more clear and easy to understand, below in conjunction with Figure of description 1~13, to blood pump of the invention and
Making assisted circulation of ventriculus cordis device is described further.Certainly the invention is not limited to the specific embodiment, those skilled in the art
General replacement known to member is also encompassed within the scope of the invention.
Secondly, the present invention has carried out detailed statement using schematic diagram, but these schematic diagrames are only for the purposes of being described in detail this hair
Bright example, should not be to this as restriction of the invention.In the application, " distal end " is referred to apart from operator farther away one
End, conversely, " proximal end " is referred to apart from the closer one end of operator.
Referring to Fig. 1, it is the structural schematic diagram of the making assisted circulation of ventriculus cordis device of the magnetic coupling type of one embodiment of the invention.
The making assisted circulation of ventriculus cordis device substitutes cardiac pumping function for playing the role of comprising imbedding piece 100 and connection merging
The blood pump 200 of part 100, the imbedding piece 100 form channel of blood flow for being placed in vivo, and the blood pump 200 is used for the blood
Blood in circulation road provides pressure, with circulation conveying blood；Wherein, the blood pump 200 includes shell 2011,2012 and of blade
Actuator, the shell 2011 have the first chamber 2013 and second chamber 2014 of fluid isolation；The blade 2012 is located at
First chamber 2013, at least part of the actuator are located at second chamber 2014, and the actuator is for driving blade
2012 rotations.
The making assisted circulation of ventriculus cordis device carries out circulatory support to heart by blood pump 200, similar compared to drug therapy
The illnesss such as cardiac failure, therapeutic effect are good；And the making assisted circulation of ventriculus cordis device is by the way of interventional therapy, i.e., and it is logical
It crosses imbedding piece 100 to be placed in vivo, in this way without carrying out the similar surgical procedure for opening the complexity such as chest, reduces operating difficulty, perform the operation
The surface of a wound is small, and the rehabilitation of chronic heart failure may be implemented, it can repeatedly implements to treat with some cycles；And the heart
Room auxiliary circulating equipment partially or completely serves as the blood-pumping function of heart by blood pump 200, and interventional procedure is simple；Institute simultaneously
State making assisted circulation of ventriculus cordis device by by least part fluid isolation of blade 2012 and actuator, realize driving part and
The Reusability of structural member, reduces treatment cost.It is preferred that the blade 2012 is by the good material system of biocompatibility
At, such as medical polymer material.
In the present embodiment, the imbedding piece 100 includes entrance member 1010 and outlet member 1020, the preferably described entrance member 1010
The entrance 2015 of detachably connected blood pump 200, the outlet 2016 of the detachably connected blood pump 200 of the outlet member 1020.It adopts
Be conveniently replaceable imbedding piece 100 with being detachably connected so that making assisted circulation of ventriculus cordis device can Reusability, reduce treatment cost.Its
In, the entrance member 1010 can be placed in atrium dextrum by femoral vein or veins of upper extremity merging, or be placed in by atrial septal puncture
Atrium sinistrum.The outlet member 1020 can be placed as required in arterial system, but be not limited to aorta, femoral artery, upper limb
Artery etc..
Further, the entrance member 1010 includes the entry conductor sheath detachably connected with the entrance 2015 of blood pump 200
1011.The outlet member 1020 includes the detachably connected delivery channel sheath 1021 in the outlet 2016 with blood pump 200.Here,
The imbedding piece 100 can play the role of drainage using in catheter sheath merging body vessel, this spline structure is simple, easy to use,
If there are damage imbedding piece 100, it is only necessary to replace corresponding catheter sheath, maintenance is convenient, at low cost.
Wherein, after the entry conductor sheath 1011 is placed in vivo, blood can be led to blood pump 200, acted in the conveying capacity of blood pump 200
Under, blood flows into vivo again by delivery channel sheath 1021.
Further, as shown in figures 2-3, Fig. 2 is the structural schematic diagram of the entrance member of one embodiment of the invention, and Fig. 3 is figure
The longitudinal sectional view of entrance member shown in 2.The entrance member 1010 further includes that entrance expansion pipe 1012 and entrance seal wire (are not schemed
Show), the entrance expansion pipe 1012 is set in entry conductor sheath 1011, and the entrance seal wire is set to entrance expansion pipe 1012
In.Entrance expansion pipe 1012 is in structural support entry conductor sheath 1011, in order to which entry conductor sheath 1011 is smooth
It is placed in intravascular.The entrance seal wire to rise a guide function so that entrance expansion pipe 1012 and entry conductor sheath 1011 along
Entrance seal wire smoothly arrives at predetermined position.
As shown in Figures 4 and 5, Fig. 4 is the structural schematic diagram of the outlet member of one embodiment of the invention, Fig. 5 be it is shown in Fig. 4 go out
The longitudinal sectional view of mouth part.The outlet member 1020 further include export expansion pipe 1022 and outlet seal wire (not shown), it is described go out
Mouth expansion pipe 1022 is set in delivery channel sheath 1021, and the outlet seal wire is set in export expansion pipe 1022.Based on phase
Same principle, the export expansion pipe 1022 is also in structural support delivery channel sheath 1021, in order to delivery channel sheath 1021
Smoothly in merging blood vessel.The outlet seal wire equally plays guide function, in order to export expansion pipe 1022 and delivery channel sheath
1021 arrive at specified position along outlet seal wire.
In the application, in order to describe conveniently, entry conductor sheath 1011 and delivery channel sheath 1021 are collectively referred to as catheter sheath
1011,1021, the entrance expansion pipe 1012 and export expansion pipe 1022 are collectively referred to as expansion pipe 1012,1022, the entrance
Seal wire and outlet seal wire are collectively referred to as seal wire, similarly hereinafter.
In preferred version, a fixed structure 1030, the fixed structure are provided on the catheter sheath 1011,1021
1030 catheter sheath 1011,1021 to be fixed in human vas, atrium sinistrum or atrium dextrum, with position catheter sheath 1011,
1021, it is ensured that the stabilization of blood flow.It is preferred that the fixed structure 1030 is located at the distal end of catheter sheath 1011,1021.The present embodiment
Making assisted circulation of ventriculus cordis device can be put into part 100 and be fixed in blood vessel, atrium sinistrum or atrium dextrum by fixed structure 1030, with
Displacement is prevented, can be realized accurate positioning in this way, to ensure that the stabilization of blood flow direction, and then ensures that ventricle is auxiliary
The safety that circulator uses is helped, the clinical applicability of making assisted circulation of ventriculus cordis device is also improved.
It is preferred that the fixed structure 1030 is a sacculus, as shown in figs. 6-7, Fig. 6 is the sacculus of one embodiment of the invention
The partial schematic diagram connecting with catheter sheath, Fig. 7 are the longitudinal sectional view that sacculus shown in fig. 6 is connect with catheter sheath.Wherein, described
Sacculus is located at the outside of catheter sheath 1011,1021, at least one through-hole 1040 is provided on the catheter sheath 1011,1021, and
The inside of the catheter sheath 1011,1021 is formed with the first cavity and the second cavity (not indicating in Fig. 7), the through-hole 140 with
The sacculus (130) and first cavity connection, the distal end closing of first cavity, fill the sacculus for being passed through
Gas or liquid, and can be passed through or be discharged gas or liquid, so that the balloon inflation or contraction, second cavity is used for
Form channel of blood flow.At this point, the catheter sheath 1011,1021 is a multi-lumen tube, and the sacculus expanded can be tightly attached to vascular wall, a left side
In the interior tissue of atrium or atrium dextrum, so that catheter sheath 1011,1021 is fixed in blood vessel, atrium sinistrum or atrium dextrum.
As shown in figs. 6-7, if the fixed structure 1030 is sacculus, the sacculus can be socketed in catheter sheath 1011,1021
On.Such as there are two opposite opening, each opening and the outer walls of catheter sheath 1011,1021 to be connected for the sacculus tool.It is right
In the sacculus of socket connection, settable multiple through-holes 1040 on the catheter sheath 1011,1021, each through-hole 1040 with it is described
First cavity and sacculus connection.
Preferably, multiple through-holes 1040 are distributed along the axially spaced-apart of catheter sheath 1011,1021, more preferable two neighboring through-hole
1040 spacing distance is equal.In further embodiments, multiple through-holes 1040 can be along the radial symmetric of catheter sheath 1011,1021
Distribution, that is, about the axially symmetric of catheter sheath 1011,1021.The distribution mode of above-mentioned through-hole 1040 can guarantee described
Gas or liquid fill sufficiently fast to the flow velocity in the sacculus in one cavity, and in gas or liquids recovery, the ball
The pressure that capsule is applied to catheter sheath 1011,1021 is balanced, not will cause and sacculus is collapsed and then caused in guide pipe sheath 1011,1021
Rebound slowly can not even be sprung back.
Fig. 8 is the sacculus of another embodiment of the present invention and the partial sectional view that catheter sheath is connect.As shown in figure 8, if described
Fixed structure 1030 is sacculus, and whole catheter sheath 1011,1021 can be located at the outside of sacculus, and at least one of the sacculus is opened
The outer wall of mouth and catheter sheath 1011,1021 is connected.Shown in Fig. 8 sacculus tool there are two opening, at this point, it is preferred that the sacculus with lead
Pipe sheath 1011,1021 is arranged in parallel.
It is connect according to non-socket mode with catheter sheath 1011,1021, as shown in figure 9, the quantity of the sacculus is preferably
Multiple, multiple sacculus are circumferentially distributed on catheter sheath 1011,1021, and preferably to bear the pressure of vascular wall, promotion is led
The fixed effect of pipe sheath 1011,1021.
Fig. 9 is that multiple sacculus of further embodiment of this invention are circumferentially distributed in the partial schematic diagram on catheter sheath.The ball
When capsule and the non-socket of catheter sheath 1011,1021 connect, the settable through-hole 1040 of each opening of the sacculus is (see figure
8)。
Either being socketed also is non-socket mode, and the sacculus may each comprise main part and from the main part
Both ends each extend over the left extended segment and right extended segment to be formed.The main part can be spherical or oval spherical or cucurbit
Shape.The left extended segment and right extended segment are in tubing shape, convenient to connect with catheter sheath 1011,1021.
Figure 10 is the partial schematic diagram of the catheter sheath of one embodiment of the invention.As shown in Figure 10, the fixed structure 1030
For one can the elastic portion restored of shape, the elastic portion is made of shape-memory material, shape can become it under the effect of external force
His shape, and when external force revocation, the elastic portion can revert to original shape and size.Specifically, implementing to set
When entering art, elastic portion can be constrained to other shapes by the restraint device of peripheral hardware, convenient for merging；After merging, by removing institute
Restraint device is stated, elastic portion can be made to revert to original shape and size, thus be tightly attached on vascular wall or atrial tissue, it is thus real
Existing catheter sheath 1011,1021 is fixed in blood vessel, atrium sinistrum or atrium dextrum.
Optional, in its natural state (under i.e. non-stress), the elastic portion is in curly or helical form.The present invention couple
This does not make particularly to limit.In the shape of a spiral, specific spiral number can be set as needed elastic portion shown in Figure 10.The bullet
Property portion can be constrained to other shapes by the expansion pipe 1012,1022 being interspersed in inside catheter sheath 1011,1021.Specifically,
The expansion pipe 1012,1022 is inserted into catheter sheath 1011,1021, and passes through the elastic portion, and the elastic portion is managed in expansion
1012, shape becomes other shapes, such as linear type under 1022 effect of contraction, after being then placed in vivo, is expanded by removing
Pipe 1012,1022, can make the elastic portion revert to original shape and size.
The elastic portion is made of thermoplasticity shape memory high molecule material, such as polystyrene type thermoplasticity shape note
Recall high molecular material or polycaprolactone type thermoplasticity shape memory high molecule material.It can shape if the fixed structure 1030 is
The elastic portion of recovery, the catheter sheath 1011,1021 with fixed structure 1030 is optional is an integral molding structure, simple process adds
Work is convenient.
Then, with continued reference to Fig. 2~5, the catheter sheath 1011,1021 preferably include main paragraph and with the main paragraph at
The bending segment of one angle so that it is convenient to catheter sheath 1011,1021 merging.Wherein, the entry conductor sheath shown in Fig. 2 and Fig. 3
1011 have main paragraph and bending segment, and the delivery channel sheath 1021 shown in Fig. 4 and Fig. 5 only has main paragraph.
Specifically, the distal end of the bending segment from the main paragraph is directly curved when the fixed structure 1030 is sacculus
Folding extends to form；When the fixed structure 1030 be can shape restore elastic portion when, the elastic portion is separately connected the master
Body section and bending segment, and the extended line of the axis or axis of the main paragraph and bending segment in the same plane project into a folder
Angle.
In order to cooperate with catheter sheath 1011,1021, the expansion pipe 1012,1022 preferably includes first part and from first
The second part that partial distal end bending extends, specifically sees Fig. 3.In turn, when assembly, the expansion pipe 1012,1022 it
Second part can cooperate the bending segment of insertion catheter sheath 1011,1021, and first part's cooperation of the expansion pipe 1012,1022 is inserted
Enter the main paragraph of catheter sheath 1011,1021.It is led it is preferred that the bending angle of the second part of the expansion pipe 1012,1022 is equal to
The bending angle of the bending segment of pipe sheath 1011,1021.
It is further preferred that the distal end of the catheter sheath 1011,1021 is provided with a necking section, the necking section include entrance and
The sectional area of outlet, the distal end of the entrance connecting conduit sheath 1011,1021, the necking section extremely exports gradually from the entrance
Reduce.Accordingly, the distal end of the expansion pipe 1012,1022 is provided with the necking part with necking section cooperation, leads in this way
The distal end of pipe sheath 1011,1021 and the distal end for expanding pipe 1012,1022 can be fitted close, and be realized without additional component remote
The connection at end simplifies connection configuration.In addition, when the catheter sheath 1011,1021 only has a linear main paragraph,
The ontology of the expansion pipe 1012,1022 mutually should be linear structure always, shown in specific Fig. 4~5.
Then, refering to Fig. 2 and Fig. 4, one or more water conservancy diversion is preferably provided on the outer wall of the catheter sheath 1011,1021
Hole 1050.Multiple deflector holes 1050 can be uniformly distributed along the axially spaced-apart of catheter sheath 1011,1021.The deflector hole 1050 is main
It is distributed in the distal end of catheter sheath 1011,1021, this is because distal end is set terminal, can be reduced in set terminal setting deflector hole 1050
Fluid resistance, so that the conveying of blood is more smooth.
Optionally, the settable quick coupling 1060 in the proximal end of the catheter sheath 1011,1021, and pass through quick coupling
The entrance 2015 of 1060 connection blood pumps 200 and outlet 2016.The present invention does not make especially the specific structure of quick coupling 1060
It limits, as long as convenient for being rapidly assembled and disassembled.
Further, anticoagulant coatings are provided on the inner wall and (or) outer wall of the catheter sheath 1011,1021, to prevent
Blood and catheter sheath 1011,1021 are had an effect and blood coagulation, and the normal conveying of blood is influenced.The catheter sheath 1011,1021 is adopted
It is made of the good material of biocompatibility, such as high molecular material.The high molecular material can be block polyether acidamide resin
(PEBAX), the high molecular materials such as nylon.
Further, the distal end of the catheter sheath 1011,1021 is provided with development point or developing ring.In some embodiments
In, the catheter sheath can be used developing material and be made.When catheter sheath 1011,1021 merging in vivo after, by setting development point or
Developing ring, or catheter sheath 1011,1021 is made using developing material, facilitate patient internal in the merging of catheter sheath 1011,1021
Afterwards, direct position of the observation catheter sheath 1011,1021 in blood vessel or atrium, it is possible thereby to improve surgical procedure accuracy and
Safety can also shorten the time of surgical procedure, reduce the risk of patient's infection.
In preferred version, fine and close anticoagulant coating is provided on the inner wall of the catheter sheath 1011,1021, as heparin applies
Layer etc., to prevent from being influenced by cavitation erosion.Also settable hydrophilic coating on the outer wall of the catheter sheath 1011,1021, due to conduit
The water-wet behavior of sheath 1011,1021 is improved, so that the smoothness on its surface is more preferable, thus facilitates catheter sheath 1011,1021
Smoothly merging is internal.
In the present embodiment, the blood pump 200 include shell 2011, blade 2012 and actuator, and the shell 2011,
Blade 2012 and part actuator are detachable structure, it is so-called it is " detachable " refer to directly replacing, with realize repeatedly
The purpose used.It is preferred that the blood pump is a centrifugal pump, centrifugal pump lift is big, and suction capacity is good, can effectively ensure blood pump
Using effect.
Particularly, in order to realize Reusability, treatment cost is reduced, it is equal with the part of contacting blood in the blood pump 200
It is set as interchangeable structure (such as blade 2012 and part actuator), and may be configured as with the part that blood does not contact
Reusable structure (such as part actuator).
In the present embodiment, the shell 2011 includes detachably connectable first shell 2011a and second shell
2011b, the first shell 2011a form first chamber 2013, and the second shell 2011b forms second chamber 2014；Paddle
Leaf 2012 is located in first shell 2011a, and at least part of the actuator is located in second shell 2011b.Wherein, described
First shell 2011a has entrance 2015 and outlet 2016, for so that blood pump 200 is connected to external fluid.
It is further preferred that being provided with the suction chamber 2017 being sequentially communicated in the first chamber 2013 (for the ease of mark, the portion
Divide and please refer to Figure 11) and pumping chamber (not shown)；According to the direction of flow of blood in first chamber 2013, the suction chamber
2017 be located at blade 2012 before, the pumping chamber is located at after blade 2012, the suction chamber 2017 be used for according to centainly
Condition inserts the liquid into first chamber 2013；The pumping chamber is used for trickle, and a part of kinetic energy of liquid is changed into
Pressure energy, to direct liquid towards the outlet 2016 of first shell 2011a.Specific working principle is: blood is from first shell
After the entrance 2015 of 2011a flows into suction chamber 2017, throw away under the centrifugal force effect of blade 2012 to pumping chamber, from first
It flows out the outlet 2016 of shell 2011a.It is preferred that the suction chamber 2017 is in straight-tapered structure, to ensure to enter first chamber
2013 flow rate of liquid is evenly distributed.The pumping chamber is preferably isodistantly spaced helical structure, to reduce liquid in flow process
Hydraulic loss.
Then, the application will be by three kinds of modes such as mechanical seal, magnetic coupling or magnetic suspension to present pre-ferred embodiments
In blood pump 200 be further described in detail, referring particularly to Figure 11 to Figure 13.
Figure 11 shows the structural schematic diagram of the blood pump of the making assisted circulation of ventriculus cordis device of Mechanical Sealed Type.Such as Figure 11 institute
Show, the actuator mechanically drives blade 2012 to rotate comprising a motor 2020, the motor 2020 pass through
Its motor shaft 2021 or the detachably connected blade 2012 of transmission shaft 2022, the blade 2012 is in motor shaft 2021 or transmission shaft
It is rotated under 2022 drive.Motor 2020 is indirectly connected with using transmission shaft 2022, the service life of motor 2020 can be promoted, electricity
The good reliability of machine 2020.It is preferred that the motor shaft 2021 is connect by a shaft coupling with transmission shaft 2022, even by elasticity
It connects, better reliability.
In this scheme, the adapter cavity being connected to above-mentioned first chamber 2013 is additionally provided in the first shell 2011a
Room 2018, the transition chamber thereof 2018 are used to inject the anticoagulation medical fluid of certain mass concentration or volumetric concentration, preferably anticoagulation
The injection pressure of medical fluid is greater than the pressure in first chamber 2013, and the liquid that may be implemented in transition chamber thereof 2018 in this way flows automatically
To first chamber 2013, and play the role of lubrication and cooling.
In the present embodiment, the anticoagulation medical fluid can be injected into transition chamber thereof 2018 by a lubricating component.It is described
Lubricating component is, for example, a peristaltic pump.
In Mechanical Sealed Type connection, if blade 2012 is connect with transmission shaft 2022, the injection of anticoagulation medical fluid can also
Play the role of lubricating transmission axis 2022, that is, at least part of transmission shaft 2022 is located in first chamber 2013.In addition,
The transition chamber thereof 2018 can be between first chamber 2013 and second chamber 2014, the motor shaft 2021 of the motor 2020
Or the transmission shaft 2022 being socketed with motor shaft 2021 may pass through transition chamber thereof 2018 and stretch in first chamber 2013, at this point, institute
It states and is provided with a sealing element 2023 (being illustrated in Figure 11), the sealing element between transition chamber thereof 2018 and second chamber 2014
2023 can be a sealing axle sleeve, to realize the sealing of motor shaft 2021 or transmission shaft 2022, prevent letting out for anticoagulation medical fluid
Leakage.
In Mechanical Sealed Type connection, the actuator further includes the manual control for connecting motor shaft 2021 or transmission shaft 2022
Component (not shown) processed can drive motor shaft by the manual control part when the motor 2020 breaks down
2021 or transmission shaft 2022 rotate, so that blade 2012 be driven to rotate, and then ensure that device can work normally.
In the above-described embodiments, the components directly contacted with blood, such as first shell 2011a, blade 2012, transmission
Axis 2022, sealing element 2023, entrance member 1010, outlet member 1020 etc. are expendable consumed product, that is, these components are every
After secondary use, can directly replace, to reach the repeatedly used purpose of device, remaining do not contacted directly with blood zero
Component can realize reuse, and no replacement is required, can reduce treatment cost in this way.
Then, such as the making assisted circulation of ventriculus cordis device of magnetic coupling type shown in fig. 1, blood pump 200 use magnetic coupling mode
Blade 2012 is driven to rotate.
Figure 12 shows the structural schematic diagram of the blood pump of the making assisted circulation of ventriculus cordis device of magnetic coupling type.As shown in figure 12,
The actuator includes motor 2020 and driving magnet, and at least part of the driving magnet connects motor 2020, and in electricity
Blade 2012 is driven to rotate by magnetic force under the driving of machine 2020；And at least one of the motor 2020 and the driving magnet
Quartile is in second shell 2011b.
In the present embodiment, the driving magnet includes active magnet 2024 and passive magnet 2025；The active magnet
2024 connect motors 2020 and are located in second shell 2011b, and the passive magnet 2025 connects blade 2012 or is set to paddle
The inside of leaf 2012, and the passive magnet 2025 is located in first shell 2011a.
In another embodiment, the driving magnet can also only include active magnet 2024, connect motor 2020 and
In second shell 2011b, and the blade 2012 is made of magnetic material, for playing passive magnet 2025.Nothing
By being which kind of above-mentioned mode, as long as can ensure that blade 2012 rotates under magneticaction.
Wherein, the magnetizing direction of the active magnet 2024 and passive magnet 2025 is the axially or radially and active
The magnetizing direction of magnet 2024 and passive magnet 2025 must be identical, and the active magnet 2024 is located at passive magnet 2025
On magnetizing direction.Such as the magnetizing direction of the passive magnet 2025 is radial direction, then active magnet 2024 is arranged in passive magnet
2025 in the radial direction, conversely,.
It is preferred that being provided with isolation structure 2026, the isolation junction between the active magnet 2024 and passive magnet 2025
Structure 2026 is to be isolated a pair of of driving magnet, to play sealing function.The isolation structure 2026 can be an isolation board, horizontal
To being set between active magnet 2024 and passive magnet 2025, structure is simple, and setting is convenient.
The working principle of magnetic coupling type blood pump 200 is: the motor 2020 drives active magnet 2024 to rotate, due to passive
There are magnetic force between magnet 2025 and active magnet 2024, so passive magnet 2025 rotates with it under the magnetic force, turn
It drives blade 2012 to rotate during dynamic, the operating of blood pump can be realized.
In magnetic coupling type connection, the active magnet 2024 is preferably connected with a manual control part (not shown),
When motor 2020 breaks down, the rotation of manual actuation blade 2012 may be implemented, so that it is guaranteed that device works normally.The hand
Dynamic control unit can be a manual rocking handle, and the manual rocking handle is fixed on active magnet 2024；The manual rocking handle and electricity
Machine 2020 and active magnet 2024 are arranged in parallel, when 2020 failure of motor can not power, by manual described in manual rotation
Rocking handle rotates active magnet 2024, to drive passive magnet 2025 to rotate.
Similarly, in magnetic coupling type connection, the components directly contacted with blood, such as first shell 2011a, blade
2012, entrance member 1010 and outlet member 1020 etc. are expendable consumed product, can directly be replaced, can Reusability to reach device
Purpose, remaining components not contacted directly with blood can realize reuse, and no replacement is required, can reduce in this way treatment at
This.
It in another embodiment, as shown in figure 13, is the making assisted circulation of ventriculus cordis of the electromagnetic levitation type of one embodiment of the invention
The structural schematic diagram of the blood pump of device, blood pump 200 drive blade 2012 to rotate using magnetic suspension mode.Specifically, described
Actuator includes at least a motor stator 2027, and the motor stator 2027 is set in second shell 2011b, for passing through
Magnetic drive blade 2012 rotates, and such motor stator 2027 does not contact directly with blood, it can be achieved that reusing.
In the present embodiment, the actuator further includes a rotor 2028, and the rotor 2028 is set to
In one shell 2011a, the rotor 2028 connects blade 2012 or the rotor 2028 is set to blade 2012
It is interior.In other embodiments, the actuator only includes a motor stator 2027, and the blade 2012 is by magnetic material system
At for serving as the effect of rotor 2028.Here, those skilled in the art should know: produced by motor stator 2027
Magnetic field and rotor 2028 caused by magnetic field interaction when, can make rotor 2028 rotate, and then drive blade
2012 rotations.
Preferably, it is provided with isolation structure 2026 between the motor stator 2027 and rotor 2028, can played close
Insulate from effect.
In electromagnetic levitation type connection, since rotor 2028 is directly contacted with blood, and then it may be configured as disposably disappearing
Consumption product are directly replaced.Similarly, in electromagnetic levitation type connection, first shell 2011a, blade 2012, entrance member 1010 and outlet member
1020 equal components can also be replaced directly, realize repeatedly used purpose.
In the above-described embodiments, the blood pump 200 drives blade 2012 by mechanical seal, magnetic coupling or magnetic suspension mode
Rotation, part configuration is few, and structure is simple, effectively reduces device quality and usable floor area, while simplifying driving process.
With continued reference to Fig. 1, the blood pump 200 further includes entrance pipe 2029 and export pipeline 2030, the entrance pipe
2029 are separately connected the entrance 2015 of entry conductor sheath 1011 and blood pump 200, and the export pipeline 2030 is separately connected outlet guide
The outlet 2016 of pipe sheath 1021 and blood pump 200.After the entry conductor sheath 1011 is connect with entrance pipe 2029, one can be passed through
Retention mechanism (not shown), such as bolt or buckle complete the fixation and sealing of the two.Similarly, the delivery channel sheath 1021
After connecting with export pipeline 2030, fixed and sealing is completed by another retention mechanism.
In addition, being provided with a quick coupling (not shown) at the entrance 2015 of the blood pump 200, the entrance 2015 is logical
It crosses the quick coupling to connect with entrance pipe 2029, and then fixed and sealing is realized by retention mechanism.The blood pump 200
Outlet 2016 at be also equipped with another quick coupling (not shown), and connected by the quick coupling and export pipeline 2030
It connects, then, fixed and sealing can be equally completed by a retention mechanism.
In preferred version, above-mentioned making assisted circulation of ventriculus cordis device further includes controller and the test section for connecting the controller
Part；Wherein, the controller issues corresponding control signal to blood pump to the signal detected according to the detection part
200, to control the operating status of blood pump 200, such as the coil of the achievable motor 2020 of the controller or motor stator 2027
The functions such as control, signal processing, human-computer interaction.
The controller preferably at least includes two control units being connected in parallel, respectively main control unit and spare list
Member, to realize Redundant Control；The main control unit and stand-by unit function having the same, wherein the main control unit conversion
It can be completed to stand-by unit by manual operation, while the main control unit can run parallel with stand-by unit, but in 200 work of blood pump
During work, only one of them is active.
The controller is additionally provided with alarm module, to realize warning function.Specifically, obtained when the detection part
Practical index exceeds capable of emitting alarm when preset range.The controller also has operation panel, it can be achieved that manual operation, and with
Host computer communication, to realize human-computer interaction.Intelligent monitoring may be implemented in the controller and host computer, and certainly according to patient profiles
Row carry out system adjusting.
The detection part includes at least flow detection module, pressure detecting module and temperature detecting module.The stream
It is electromagnetism or ultrasonic flowmeter that it is optional, which to measure detection module, is set in channel of blood flow, to obtain velocity of blood flow, and it is logical with controller
News, the controller control the working condition of blood pump 200 according to the velocity of blood flow measured.The pressure detecting module can be
The pressure detecting part being set at the entrance 2015 or outlet 2016 of blood pump 200, such as pressure sensor, to obtain entrance
2015 and the blood stream pressure at 2016 ends is exported, and is communicated with controller.The temperature detecting module can be temperature detection part,
It is set in channel of blood flow, to obtain blood temperature, and and controller communication.
The controller and detection part of the present embodiment are all made of modular construction, this spline structure is simple, adjustment and operation side
Just；Moreover, detected and controlled using modules, intelligence degree is high, conducive to the operating status of real time monitoring apparatus, with
Convenient for being adjusted in time according to the case where patient.
Certainly, the also settable other information component of detection part of the invention, it is right to detect other physical signs of blood
This, the present invention does not limit particularly, can mainly be added according to actual needs.
Further, the making assisted circulation of ventriculus cordis device further includes the energy supply component for connecting blood pump 200, and the energy supply component is used
In offer electric energy.The energy supply component includes an attaching plug, and to connect external power supply, also may include one can be accommodated
The setting of the battery insertion groove of battery, preferably redundancy, that is, simultaneously include attaching plug and battery insertion groove, in this way when can not pass through
When external power supply is powered, it can be charged by battery, it is ensured that the energy supply demand of device.
Further, the making assisted circulation of ventriculus cordis device further includes the widening parts for realizing additional function.The expansion
Opening up component includes but is not limited to oxygenator, filter, manual control part, temperature controlling unit, infusion of medicine component, fixation
Component etc. is mainly configured according to actual therapeutic needs.
Wherein, oxygenator, filter, temperature controlling unit, infusion of medicine component can be placed in the outlet of blood pump 200
2016 ends, between export pipeline 2030 and delivery channel sheath 1021.Fixation portions part, which is mainly used for leg, to be fixed or body
Outer fixation is carried out with specific reference to patient demand using fixation member will be connect with the shell 2011 of blood pump 200, realize that leg is solid
It is fixed outside fixed or body.
In order to ensure being placed in effect, the making assisted circulation of ventriculus cordis device further includes be set to catheter sheath 1011,1021 close
Exhaust apparatus (not shown) at end, the exhaust apparatus are separately connected proximal end and the blood pump 200 of catheter sheath 1011,1021, use
To play scavenging action, to purify blood.The exhaust apparatus is, for example, triple valve, and the specific present invention does not limit.It is optional, it is described
The entrance 2015 of blood pump 200 and (or) exit 2012 are provided with an exhaust apparatus.
Then, in conjunction with above-described embodiment, and refering to fig. 1, the application is described in detail by taking the patient for treating left heart failure as an example
The implementation process of making assisted circulation of ventriculus cordis device of the invention:
Firstly, carry out femoral vein antegrade puncture, entrance seal wire is placed in atrium sinistrum by atrial septal puncture art, it is described enter
After mouth expansion pipe 1012 and entry conductor sheath 1011 enter in atrium sinistrum, takes out entrance and expand pipe 1012, make fixed structure
1030 work, can be such that entry conductor sheath 1011 is fixed in atrium sinistrum；
Secondly, carrying out femoral artery puncture, outlet seal wire is placed in opposite side femoral artery, the export expansion pipe 1022 and outlet
Catheter sheath 1021 enters in the femoral artery of opposite side, takes out export expansion pipe 1022, so that fixed structure 1030 is worked, so that outlet guide
Pipe sheath 1021 is fixed in the femoral artery of opposite side；
Later, it controls motor 2020 by controller (or host computer) to start, to drive blood pump 200 to work；The course of work
In, each detection part is monitored the operating status of making assisted circulation of ventriculus cordis device, and is communicated with controller, realization device
Real time monitoring, and can pass through the controller realize runing adjustment.
Making assisted circulation of ventriculus cordis device of the invention needs ventricle auxiliary or first aid to control mainly for middle or short term (within about 30 days)
The patient for the treatment of, including acute heart failure treatment, chronic heart failure rehabilitation, the illnesss such as postoperative circulatory support in art, it is quasi- be configured at operating room,
The ward ICU and rescue room etc..
In conclusion the making assisted circulation of ventriculus cordis device in present pre-ferred embodiments follows heart by blood pump 200
Ring supports that, compared to illnesss such as drug therapy similar heart functional failure, therapeutic effect is good；And the making assisted circulation of ventriculus cordis dress
It sets by the way of interventional therapy, that is, is placed in vivo by imbedding piece 100, without carrying out the similar operation for opening the complexity such as chest
Operation, thus reduces operating difficulty, surgical wound surface is small, the rehabilitation of chronic heart failure may be implemented, it can with one
Fixed cycle is repeatedly implemented to treat；And the making assisted circulation of ventriculus cordis device partially or completely serves as the pump of heart by blood pump 200
Blood function, interventional procedure are simple；The making assisted circulation of ventriculus cordis device is by flowing blade 2012 and actuator simultaneously
Body isolation, avoids blood from polluting a part of driving part, improves the Reusability of device, reduce treatment cost.
In addition, the blood pump 200 in present pre-ferred embodiments is set as dismountable structure so that it is convenient to use every time
After finishing, can directly replace blood pump 200 (the first shell 2011a that particularly, is directly contacted in the blood pump 200 with blood,
Blade 2012 and part actuator can be replaced directly), can make in this way device have Reusability, with reduce treatment at
This.
In addition, the blood pump 200 in present pre-ferred embodiments realizes driving by mechanical seal, magnetic coupling or magnetic suspension,
Part configuration is few, and structure is simple, effectively reduces device quality and usable floor area, and simplify driving process.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Range.
Claims (14)
1. a kind of blood pump, which is characterized in that including shell, blade and actuator, the shell has first chamber and the second chamber
Room, the first chamber have entrance and exit, are used for so that the blood pump is connected to external fluid, and the first chamber and
Fluid isolation between the second chamber；The blade is located at the first chamber, and at least part of the actuator is located at institute
Second chamber is stated, the actuator is for driving the blade to rotate；The actuator includes motor and driving magnet；The drive
At least part in dynamic magnet connects the motor, and drives the blade to turn by magnetic force under the driving of the motor
It is dynamic；At least part and the motor in the driving magnet are all located in the second chamber.
2. blood pump according to claim 1, which is characterized in that the driving magnet includes active magnet and passive magnet；
The active magnet connects the motor and is located in the second chamber, and the passive magnet connects the blade or is set to
The inside of the blade, and the passive magnet is located in the first chamber.
3. blood pump according to claim 2, which is characterized in that the magnetizing direction phase of the active magnet and passive magnet
Together, and the active magnetic body is located on the magnetizing direction of passive magnet.
4. blood pump according to claim 1, which is characterized in that the driving magnet includes active magnet, the active magnetic
Body connects the motor and is located in the second chamber, and the blade is made of magnetic material.
5. blood pump according to claim 1, which is characterized in that the first chamber includes suction chamber and pumping chamber；According to
Direction of flow of blood in the first chamber, the suction chamber are located at before the blade, and the pumping chamber is located at the paddle
After leaf.
6. blood pump according to claim 5, which is characterized in that the suction chamber is in straight-tapered structure；The pumping chamber is in
Equidistant helical structure.
7. blood pump according to claim 1, which is characterized in that the shell includes first shell and second shell, described
First shell forms the first chamber, and the second shell forms the second chamber, the first shell and described second
Shell is detachably connectable.
8. a kind of making assisted circulation of ventriculus cordis device, which is characterized in that including the blood pump as described in any one of claim 1-7.
9. making assisted circulation of ventriculus cordis device according to claim 8, which is characterized in that further include being connected with the blood pump
Imbedding piece, the imbedding piece form channel of blood flow for being placed in vivo, and the blood pump is for the blood into the channel of blood flow
Pressure is provided, with circulation conveying blood.
10. making assisted circulation of ventriculus cordis device according to claim 9, which is characterized in that the imbedding piece includes a catheter sheath,
A fixed structure is provided on the catheter sheath, the fixed structure is used for the catheter sheath is fixed in the blood vessel.
11. making assisted circulation of ventriculus cordis device according to claim 10, which is characterized in that the fixed structure is a sacculus,
The sacculus is connected with catheter sheath；Wherein, at least one through-hole, and the inside of the catheter sheath are provided on the catheter sheath
It is formed with the first cavity and the second cavity, the through-hole is connected to the sacculus and first cavity, first cavity
For being passed through the gas or liquid that fill the sacculus, second cavity is used to form channel of blood flow.
12. making assisted circulation of ventriculus cordis device according to claim 10, which is characterized in that the fixed structure can shape for one
The elastic portion of recovery, the elastic portion is made of shape-memory material and the elastic portion is in nonlinear type shape.
13. making assisted circulation of ventriculus cordis device according to claim 8, which is characterized in that the making assisted circulation of ventriculus cordis device is also
Detection part including controller and the connection controller；Wherein, the controller according to the detection part to detect
The signal arrived issues corresponding control signal to the blood pump, to control the operating status of blood pump.
14. making assisted circulation of ventriculus cordis device according to claim 13, which is characterized in that the detection part includes flow inspection
Survey module, pressure detecting module and temperature detecting module；The flow detection module is set in channel of blood flow, for obtaining
Velocity of blood flow；The pressure detecting module is set to the outlet and/or inlet of the blood pump, for obtaining blood stream pressure；Institute
It states temperature detecting module to be set in channel of blood flow, for obtaining blood temperature.
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| CN201610087525.2A CN107080870B (en) | 2016-02-16 | 2016-02-16 | Blood pump and making assisted circulation of ventriculus cordis device |
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| CN201610087525.2A CN107080870B (en) | 2016-02-16 | 2016-02-16 | Blood pump and making assisted circulation of ventriculus cordis device |
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| CN107080870B true CN107080870B (en) | 2019-11-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP4233989A3 (en) | 2017-06-07 | 2023-10-11 | Shifamed Holdings, LLC | Intravascular fluid movement devices, systems, and methods of use |
| EP3710076B1 (en) | 2017-11-13 | 2023-12-27 | Shifamed Holdings, LLC | Intravascular fluid movement devices, systems, and methods of use |
| EP4085965A1 (en) | 2018-02-01 | 2022-11-09 | Shifamed Holdings, LLC | Intravascular blood pumps and methods of use and manufacture |
| CN108543132A (en) * | 2018-05-30 | 2018-09-18 | 北京米道斯医疗器械有限公司 | A kind of extracorporeal membrane oxygenation pressure sensor and application method |
| EP3581216A1 (en) * | 2018-06-11 | 2019-12-18 | Universität Zürich | Blood pump for mechanical circulatory support for fontan patients |
| CN108815601B (en) * | 2018-10-15 | 2019-01-29 | 上海微创医疗器械（集团）有限公司 | Magnetic coupling centrifugal blood pump and blood pump pedestal |
| CN109431485A (en) * | 2018-11-06 | 2019-03-08 | 天津大学 | A kind of velocity of blood flow detection device applied in foley's tube |
| CN109718408B (en) * | 2019-02-28 | 2021-05-07 | 赤峰市医院 | External ventricular assist device |
| EP3955985A1 (en) * | 2019-04-19 | 2022-02-23 | Abiomed, Inc. | Cooled mechanical circulatory support system and method of operation |
| CN110237327A (en) * | 2019-06-14 | 2019-09-17 | 湖南埃普特医疗器械有限公司 | A kind of external profile shaft stream ventricular assist device of driving |
| WO2021011473A1 (en) | 2019-07-12 | 2021-01-21 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
| WO2021016372A1 (en) | 2019-07-22 | 2021-01-28 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
| WO2021062265A1 (en) | 2019-09-25 | 2021-04-01 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| WO2023283751A1 (en) * | 2021-07-12 | 2023-01-19 | 苏州心擎医疗技术有限公司 | Device for assisting heart in event of heart failure |
| CN115701800A (en) * | 2022-09-05 | 2023-02-14 | 苏州心擎医疗技术有限公司 | In-vitro blood pump system for on-line instant obtaining blood parameters |
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