CN107080871A - Catheter sheath and making assisted circulation of ventriculus cordis device - Google Patents
Catheter sheath and making assisted circulation of ventriculus cordis device Download PDFInfo
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- CN107080871A CN107080871A CN201610087572.7A CN201610087572A CN107080871A CN 107080871 A CN107080871 A CN 107080871A CN 201610087572 A CN201610087572 A CN 201610087572A CN 107080871 A CN107080871 A CN 107080871A
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- assisted circulation
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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
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0108—Steering means as part of the catheter or advancing means; Markers for positioning using radio-opaque or ultrasound markers
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Cardiology (AREA)
- Mechanical Engineering (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Vascular Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
The invention provides a kind of catheter sheath and making assisted circulation of ventriculus cordis device, the catheter sheath includes a catheter body, the catheter body have one can the elastic portion recovered of shape, the elastic portion is made up of shape-memory material and the elastic portion is in nonlinear type shape.The catheter sheath of the present invention can be recovered by the shape of the elastic portion after inserting in vivo, elastic portion is close in vascular wall, atrium sinistrum or the interior tissue of atrium dextrum, so as to realize its fixation in blood vessel, atrium sinistrum or the interior tissue of atrium dextrum.The making assisted circulation of ventriculus cordis device of the present invention includes above-mentioned catheter sheath, position can be fixed after being inserted in vivo due to catheter sheath, accurate positioning thus can be realized, thereby ensure that the stabilization of blood flow direction, avoid existing conduit because position not fix and caused by risk problem, so improve the security that making assisted circulation of ventriculus cordis device is used, and clinical applicability.
Description
Technical field
The invention belongs to technical field of medical instruments, and in particular to a kind of sanguimotor ventricle of accessory heart is auxiliary
EGR is helped, more particularly to a kind of catheter sheath that can be inserted in human body and play blood channel.
Background technology
Heart failure is the main cause of death of cardiovascular patient, its 5 years survival rates and malignant tumour class
Seemingly.At present, the treatment of heart failure can be generally divided into three classes, be respectively drug therapy, heart transplant and
Mechanical assistance is circulated.Wherein, drug therapy is often effective to light, moderate patients with heart failure, but for whole latter stage
Patients with heart failure but produces little effect, and 1 year, 5 years assumed mortality rates are respectively close to 30% and 60%.Heart transplant
The best approach for treating endstage cardiac insufficiency, but due to being influenceed by donor, still can not extensive use,
For example in the U.S., the patient of waiting for heart transplantation is registered more than 50000 people in hospital every year, but only 2000
People can receive heart transplant operation.
Therefore, mechanical assistance circulation has been increasingly becoming the necessary means for saving severe heart failure patients.Machinery
Auxiliary circulation refers to, using made mechanical device, can partly or completely substitute the pump blood work(of heart
Can, it is ensured that body tissue, the blood supply of organ.Wherein, percutaneous left ventricular assist device (Percutaneous
Left Ventricular Assist Device, PLVAD), it is simple in construction because its wound is small, it is excellent easily to operate
Point, is widely used in mechanical assistance cycle art.
Existing percutaneous left ventricular assist device is by inserting the conduit in human body, as the passage of blood circulation,
But because conduit can not be fixed in the blood vessels, easily occur locating bias, cause blood flow direction to occur deviation,
So as to the problems such as causing bleeding, limb ischemia, artery jag, greatly affected percutaneous left ventricle auxiliary dress
The application put.
The content of the invention
It is an object of the invention to provide a kind of catheter sheath and its making assisted circulation of ventriculus cordis device of application, to solve
The conduit used in the prior art on making assisted circulation of ventriculus cordis device can not be consolidated in blood vessel, atrium sinistrum and atrium dextrum
The problem of determining.
To achieve the above object and other related purposes, the invention provides a kind of catheter sheath, the catheter sheath
Including a catheter body, the catheter body have one can the elastic portion recovered of shape, the elastic portion is by shape
Shape memory material is made and the elastic portion is in nonlinear type shape.
It is preferred that, the catheter body is formed in one structure.
It is preferred that, the elastic portion is in curly or helical form.
It is preferred that, the elastic portion is thermoplasticity shape memory high molecule material.
It is preferred that, the thermoplasticity shape memory high molecule material is polystyrene type or polycaprolactone type.
It is preferred that, it is provided with anticoagulant coatings on the inwall and/or outer wall of the catheter body.
It is preferred that, the catheter body is made up of high polymer material.
It is preferred that, the distal end of the catheter body is provided with development point or developing ring.
It is preferred that, the catheter body is made up of developing material.
In addition, the invention provides a kind of making assisted circulation of ventriculus cordis device, including as above leading described in any one
The blood pump of pipe sheath and the connection catheter sheath.
It is preferred that, the blood pump includes housing, blade and actuator, and the housing has first chamber and second
Chamber, the first chamber has entrance and exit, for causing the blood pump to be connected with external fluid, and
Fluid isolation between the first chamber and the second chamber；The blade is located at the first chamber, described
At least a portion of actuator is located at the second chamber, and the actuator is used to drive the blade to rotate.
It is preferred that, the actuator at least includes a motor stator, and the motor stator is arranged at described second
In chamber, for being rotated by blade described in magnetically-actuated.
It is preferred that, the actuator also includes a rotor, and the rotor is arranged at first chamber
It is indoor；The rotor connects the blade or the rotor is arranged in the blade.
It is preferred that, the blade is made up of magnetic material.
It is preferred that, the actuator includes motor, and the motor is detachably connected by motor shaft or power transmission shaft
The blade, the motor is located in the second chamber, between the first chamber and the second chamber
It is provided with seal.
It is preferred that, the blood pump also includes transition chamber thereof, be arranged at the first chamber and the second chamber it
Between, the transition chamber thereof is in fluid communication with the first chamber, the transition chamber thereof and the second chamber stream
Body is isolated, and the motor shaft or power transmission shaft are stretched into the first chamber through the transition chamber thereof.
It is preferred that, the actuator includes motor and driving magnet；At least a portion connection of the driving magnet
The motor, and drive the blade to rotate by magnetic force under the driving of the motor；The motor and institute
At least a portion for stating driving magnet is all located in the second chamber.
It is preferred that, the driving magnet includes active magnet and passive magnet；The active magnet connects the electricity
Machine and in the second chamber, the passive magnet connects the blade or is arranged at the interior of the blade
Portion, and the passive magnet is 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
On the magnetizing direction of passive magnet.
It is preferred that, the driving magnet includes active magnet, and the active magnet connects the motor and positioned at institute
State in second chamber, and the blade is made up of magnetic material.
It is preferred that, the housing includes the first housing and the second housing, and the first shell body forms first chamber
Room, the second shell body forms the second chamber, and first housing and second housing are removably
It is connected.
Compared with prior art, catheter sheath of the invention and making assisted circulation of ventriculus cordis device, with following beneficial effect
Really：
1st, catheter sheath of the invention can be recovered by the shape of elastic portion after inserting in vivo, make elastic portion tight
It is attached in vascular wall, atrium sinistrum and the interior tissue of atrium dextrum, so as to realize catheter sheath in blood vessel, atrium sinistrum
Or the fixation in atrium dextrum；
2nd, making assisted circulation of ventriculus cordis device of the invention includes above-mentioned catheter sheath, position after being inserted in vivo due to catheter sheath
Putting to fix, so as to realize accurate positioning, thereby ensure that the stabilization of blood flow direction, it is to avoid
Existing conduit because position not fix and caused by risk problem, which ensures that making assisted circulation of ventriculus cordis device is used
Security, also improve the clinical practice of making assisted circulation of ventriculus cordis device；
3rd, making assisted circulation of ventriculus cordis device of the invention includes dismountable blood pump, blood pump include blade, housing and
Actuator, housing includes the first housing and the second housing, and both are detachably connectable, and blade is arranged on the
In one housing, each part of blood pump is so conveniently replaceable, on the other hand, part driving part and blood are without connecing
Touch, it is repeatable to utilize to reduce treatment cost；
4th, blood pump of the invention drives by motor direct-drive, or by magnetic coupling or magnetic suspension mode, and zero
Part configuration is few, simple in construction, device quality and usable floor area is effectively reduced, while simplifying driving process.
Brief description of the drawings
Fig. 1 is the structural representation of the catheter sheath of one embodiment of the invention；
Fig. 2 is the structural representation of the making assisted circulation of ventriculus cordis device of the magnetic coupling type of one embodiment of the invention；
Fig. 3 is that the structure of the blood pump of the making assisted circulation of ventriculus cordis device of the Mechanical Sealed Type of one embodiment of the invention is shown
It is intended to；
Fig. 4 is the structural representation 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；
Fig. 5 is the structural representation of the blood pump of the making assisted circulation of ventriculus cordis device of the electromagnetic levitation type of one embodiment of the invention
Figure；
Fig. 6 is the structural representation of the entry conductor sheath for being not inserted into entrance expander of one embodiment of the invention；
Fig. 7 is the longitudinal sectional view after the entry conductor sheath insertion entrance expander shown in Fig. 6；
Fig. 8 is the structural representation of the delivery channel sheath for being not inserted into export expansion device of one embodiment of the invention；
Fig. 9 is the longitudinal sectional view after the delivery channel sheath insertion export expansion device shown in Fig. 8；
Figure 10 is that the entrance of one embodiment of the invention expands the structural representation of pipe；
Figure 11 is the structural representation of the export expansion pipe of one embodiment of the invention.
Brief description of the drawings in figure is as follows：
10- making assisted circulation of ventriculus cordis devices；100- catheter sheaths；110- catheter bodies；120- elastic portions；111- main bodys
Section；112- bending segments；113- neckings section；114- pod apertures；1010- entry conductor sheaths；1020- delivery channels
Sheath；1030- entrances expansion pipe；1031- Part I；1032- Part II；1033- throat structures；1040-
Export expansion pipe；1041- neckings part；1050th, 1060- snap joints；200- blood pumps；2011- housings；2011a-
First housing；The housings of 2011b- second；2012- blades；2013- first chambers；2014- second chambers；2015-
Entrance；2016- is exported；2017- suction chambers；2018- transition chamber thereofs；2020- motors；2021- motor shafts；2022-
Power transmission shaft；2023- seals；2024- active magnets；The passive magnets of 2025-；2026- isolation structures；2027-
Motor stator；2028- electronics rotors；2029- entrance pipes；2030- export pipelines.
Embodiment
To make present disclosure more clear understandable, below in conjunction with Figure of description 1~11, to the present invention's
Catheter sheath and making assisted circulation of ventriculus cordis device are described further.Certainly the invention is not limited in the specific implementation
Example, general replacement well known to the skilled artisan in the art is also covered by within the scope of the present invention.
Secondly, the present invention has carried out detailed statement using schematic diagram, but these schematic diagrames are only for the purposes of detailed
Present example is stated, should not be to this restriction as the present invention.In the application, " distal end " is referred to
Apart from the one end of operator farther out, conversely, " near-end " refers to one end nearer apart from operator.
First, referring to Fig. 1, it is the schematic diagram of the catheter sheath of one embodiment of the invention.The catheter sheath
100 include catheter body 110, and the catheter body 110 have one can the elastic portion recovered of shape
120, the elastic portion 120 is made up of shape-memory material and the elastic portion 120 has nonlinear type shape.
In use, the elastic portion 120 in the presence of external force can shape become other shapes；When external force is cancelled,
The elastic portion 120 can revert to original shape and size.Specifically, implement to insert catheter sheath 100
When, elastic portion 120 can be constrained to by other shapes by the restraint device of peripheral hardware, be easy to insert；After inserting,
By removing the restraint device, elastic portion 120 can be made to revert to original shape and size, so as to be close to
In vascular wall, atrium sinistrum or the interior tissue of atrium dextrum, catheter sheath 100 is achieved in blood vessel, atrium sinistrum
Or the fixation in atrium dextrum.
The catheter sheath 100 of the present embodiment is particularly suitable for use in the sanguimotor making assisted circulation of ventriculus cordis device of accessory heart,
Blood channel can be played a part of.In addition, for the way of restraint of elastic portion 120, the present invention does not make special
It is other to limit, such as when implementing implantation, another a pipe can be interted in the inside of catheter body 110,
Elastic portion 120 is constrained into other shapes；And after inserting, the another a pipe can be removed, institute
Original shape and size can be reverted to by stating elastic portion 120.
In the present embodiment, the elastic portion 120 is made of thermoplasticity shape memory high molecule material, for example
Polystyrene type thermoplasticity shape memory high molecule material, or polycaprolactone type thermoplasticity shape memory high molecule
Material.
Optional, the catheter body 110 is formed in one structure, and technique is simple, easy to process.The bullet
Property portion 120 in nonlinear type shape, for example, can be in a free state curly (i.e. under undeformed state)
Or helical form etc., the present invention does not make special restriction to this.Elastic portion 120 shown in Fig. 1 in the shape of a spiral,
Specific spiral number can be arranged as required to.
In the present embodiment, the catheter body 110 is a single lumen catheter, using the passage as blood circulation.It is excellent
Choosing, the catheter body 110 includes main paragraph 111 and the bending segment 112 being had angle with main paragraph 111,
Wherein, the connection main paragraph 111 of elastic portion 120 and bending segment 112.Conduit is facilitated by bending segment 112
Sheath 100 inserts human body.
Further, one end (i.e. distal end) of the catheter body 110 is provided with a necking section 113, described
Necking section 113 is included an inlet and an outlet, the distal end of the entrance connecting conduit body 110, and the necking
The sectional area of section 113 is gradually reduced from the entrance to outlet.The entrance of necking section 113 shown in Fig. 1 connects
One end of bending segment 112 is connect, so that necking section 113 constitutes a part for bending segment 112.In the application,
" distal end " refers to one end away from user, conversely, " near-end " refers to one close to user
End, similarly hereinafter.
With continued reference to Fig. 1, one or more pod apertures 114 can be set on the outer wall of the catheter body 110,
It is preferred that the quantity of the pod apertures 114 is multiple.Axially spaced-apart of multiple pod apertures 114 along catheter body 110
Distribution.It is further preferred that the pod apertures 114 are distributed in the distal end of catheter body 110, such as bending segment 112
On.Fluid resistance can be reduced using pod apertures 114 so that the conveying of blood is more smooth.
Further, anticoagulant coatings are provided with the inwall and (or) outer wall of the catheter body 110,
Had an effect and blood coagulation to prevent Hemostatic Oral Liquid and catheter body 110, influence the normal conveying of blood.The conduit
Body 110 is made of the good material of biocompatibility, is made for example with high polymer material.The height
Molecular material can be block polyether acidamide resin (PEBAX), nylon Polymer material.
Further, the distal end of the catheter body 110 is provided with development point or developing ring.Shown in Fig. 1
I.e. the distal end of the distal end bending segment 112 of catheter body 110.Or the catheter body 110 is using development
Material is made.Catheter sheath 100 is made by setting development point or developing ring, or using developing material, is facilitated
Patient observes position of the catheter sheath 100 in blood vessel or atrium after catheter sheath 100 is inserted in vivo, directly,
It is possible thereby to improve the accuracy and security of operation technique, the time of operation technique can also be shortened, reduced
The risk of patient's infection.
In preferred version, the anticoagulant coating of densification, such as liver are provided with the inwall of the catheter body 110
Element coating etc., to prevent by cavitation erosion influence.Hydrophilic apply also can be set on the outer wall of the catheter body 110
Layer, to increase the smoothness of catheter sheath 100, beneficial to smoothly inserting for catheter sheath 100.
Then, refering to Fig. 2 to Figure 11, present invention also offers a kind of making assisted circulation of ventriculus cordis device 10, it is used for
Play a part of substituting cardiac pumping function, it includes the catheter sheath 100 and connecting conduit of above-described embodiment
The blood pump 200 of sheath 100, the catheter sheath 100 is used to insert forms channel of blood flow, the blood pump 200 in vivo
Pressure is provided for the blood into the channel of blood flow, with circulation conveying blood.
The making assisted circulation of ventriculus cordis device 10 of the present embodiment, position can be consolidated after being inserted in vivo due to catheter sheath 100
It is fixed, so as to realize accurate positioning, thereby ensure that the stabilization of blood flow direction, it is to avoid existing conduit
Because position not fix and caused by risk problem, which ensures that the security that making assisted circulation of ventriculus cordis device is used,
Also the clinical applicability of making assisted circulation of ventriculus cordis device is improved.
Especially, such as Fig. 3~5, and Fig. 2 is combined, Fig. 2 is the ventricle of the magnetic coupling type of one embodiment of the invention
The structural representation of auxiliary circulating equipment.The blood pump 200 includes housing 2011, blade 2012 and actuator,
The housing 2011 has the first chamber 2013 and second chamber 2014 of fluid isolation；The blade 2012
Positioned at first chamber 2013, at least a portion of the actuator is located at second chamber 2014, the actuator
For driving blade 2012 to rotate.It is preferred that the blade 2012 is made up of the good material of biocompatibility,
Such as medical polymer material.
The making assisted circulation of ventriculus cordis device 10 of the present embodiment by the way that blade 2012 and actuator are carried out into fluid isolation,
So, the blade 2013 with contacting blood can be changed directly, and not with the actuator of contacting blood at least
A part can be achieved to reuse, and thus improve the Reusability of making assisted circulation of ventriculus cordis device 10, drop
Low treatment cost.In addition, the making assisted circulation of ventriculus cordis device 10 is circulated by blood pump 200 to heart
Support, compared to illnesss such as drug therapy similar heart MSOFs, therapeutic effect is good.In addition, the heart
Room auxiliary circulating equipment 10 is inserted in vivo, such nothing by the way of PCI by catheter sheath 100
The similar operation technique for opening the complexity such as chest need to be carried out, operating difficulty is reduced, also reduces surgical wound surface, can
To realize the rehabilitation of chronic heart failure, you can repeatedly to implement treatment with some cycles.Further, institute
The blood-pumping function that making assisted circulation of ventriculus cordis device 10 partially or completely serves as heart by blood pump 200 is stated, intervention is controlled
Treatment process is simple.
With continued reference to Fig. 2, the catheter sheath 100 includes entry conductor sheath 1010 and delivery channel sheath 1020,
It is preferred that the entrance 2015 of the detachably connected blood pump 200 of entry conductor sheath 1010, the delivery channel sheath
The outlet 2016 of 1020 detachably connected blood pumps 200.Wherein, the entry conductor sheath 1010 inserts body
After interior, blood can be led to blood pump 200, under the carrying capacity effect of blood pump 200, blood passes through outlet guide
Pipe sheath 1020 is flowed into vivo again.Here, by using being detachably connected, catheter sheath 100 is conveniently replaceable,
So that making assisted circulation of ventriculus cordis device 10 can Reusability, further reduce treatment cost.
Wherein, the entry conductor sheath 1010 can be inserted by femoral vein or veins of upper extremity and be positioned over atrium dextrum, or
Atrium sinistrum is positioned over by atrial septal puncture.The delivery channel sheath 1020 can be placed as required on arterial system
In system, but it is not limited to sustainer, femoral artery, artery of upper extremity etc..
Further, as shown in figs. 6-7, Fig. 6 is that the entrance expansion pipe that is not inserted into of one embodiment of the invention enters
The structural representation of mouth catheter sheath, Fig. 7 is that the entry conductor sheath insertion entrance shown in Fig. 6 expands indulging after pipe
To sectional view.The catheter sheath 100 also includes entrance and expands pipe 1030 and entrance seal wire (not shown in Fig. 7),
The entrance expansion pipe 1030 is arranged in entry conductor sheath 1010, and the entrance seal wire is arranged at entrance expansion
Open in pipe 1030.The entrance expansion pipe 1030 is used in structural support entry conductor sheath 1010 so that
The shape of entry conductor sheath 1010 is consistent with entrance expansion pipe 1030 so that the elastic portion 120 is suitable
Entrance is answered to expand pipe 1030 and substantially linear property structure, in order to which entry conductor sheath 1010 is smoothly inserted
It is intravascular.The entrance seal wire is to play guide function, so that entrance expansion pipe 1030 and entry conductor sheath 1010
Precalculated position is smoothly arrived at along entrance seal wire.
As shown in Fig. 8~9, Fig. 8 is the delivery channel sheath for being not inserted into export expansion pipe of one embodiment of the invention
Structural representation, Fig. 9 be shown in Figure 10 entry conductor sheath insertion export expansion pipe after longitudinal sectional view.
The catheter sheath 100 also includes export expansion pipe 1040 and outlet seal wire (not shown), the export expansion
Pipe 1040 is arranged in delivery channel sheath 1020, and the outlet seal wire is arranged in export expansion pipe 1040.
Based on identical principle, the export expansion pipe 1040 also in structural support delivery channel sheath 1020, make
The shape and export expansion pipe 1040 that catheter sheath 1020 must be exported are consistent so that the elastic portion 120
Export expansion pipe 1040 is complied with and substantially linear property structure, in order to which delivery channel sheath 1020 is smoothly put
Enter in blood vessel.The outlet seal wire equally plays guide function, in order to export expansion pipe 1040 and delivery channel
Sheath 1020 arrives at the position specified along outlet seal wire.
With continued reference to Fig. 2, and Fig. 3~5 are combined, the entry conductor sheath 1010 and delivery channel sheath 1020
Near-end can set a snap joint 1050,1060 respectively, and the entry conductor sheath 1010 passes through snap joint
The entrance 2015 of 1050 connection blood pumps 200, the delivery channel sheath 1020 is connected by snap joint 1060
The outlet 2016 of blood pump 200.The present invention is not particularly limited to the concrete structure of snap joint, as long as just
In being rapidly assembled and disassembled.
Further, it is that the entrance of one embodiment of the invention expands the schematic diagram of pipe refering to Figure 10~11, Figure 10,
Figure 11 is the schematic diagram of the export expansion pipe of one embodiment of the invention.Entrance expansion pipe 1030 includes the
A part 1031 and the Part II 1032 extended from the bending of Part I 1031.During assembling, the entrance
The Part II 1032 of expansion pipe 1030 can coordinate the bending segment 112 of insertion entry conductor sheath 1010, described
The Part I 1031 of entrance expansion pipe 1030 coordinates the main paragraph 111 of insertion entry conductor sheath 1010.It is excellent
Choosing, the bending angle of the Part II 1032 of entrance expansion pipe 1030 be equal to entry conductor sheath 1010 it
The bending angle of bending segment 112.It is further preferred that one end (i.e. distal end) of the entrance expansion pipe 1030 is set
There is throat structure 1033, be fitted close with the necking section 113 with entry conductor sheath 1010, it is ensured that good dress
Match somebody with somebody.It is preferred that, one end of the export expansion pipe 1040 is correspondingly arranged on the necking with delivery channel sheath 1020
The necking part 1041 that section 113 coordinates.
In the present embodiment, the blood pump 200 includes housing 2011, blade 2012 and actuator, and described
Housing 2011, blade 2012 and part actuator are demountable structure, and so-called " detachable " is referred to can
Directly to change, to realize the purpose of Reusability.It is preferred that the blood pump is a centrifugal pump, centrifugal pump lift
Greatly, suction capacity is good, can effectively ensure the using effect of blood pump.
Especially, in order to realize Reusability, reduce in treatment cost, the blood pump 200 with contacting blood
Part be disposed as interchangeable structure (such as blade 2012 and part actuator), and do not have with blood
The part for having contact may be configured as the repeatable structure (such as part actuator) utilized.
With continued reference to Fig. 2 to Fig. 5, the housing 2011 includes the first detachably connectable housing 2011a
With the second housing 2011b, the first housing 2011a formation first chamber 2013, the second housing 2011b
Form second chamber 2014；Blade 2012 is located in the first housing 2011a, at least one of the actuator
Divide and be located in the second housing 2011b.Wherein, the first housing 2011a has entrance 2015 and outlet 2016,
For causing blood pump 200 to be connected with external fluid.
Preferably, the suction chamber 2017 being sequentially communicated and pumping chamber (figure are provided with the first chamber 2013
In do not indicate)；Wherein, the direction of flow of blood in first chamber 2013, the suction chamber 2017
Before blade 2012, the pumping chamber is located at after blade 2012, and the suction chamber 2017 is used for basis
Certain condition inserts the liquid into first chamber 2013, and the pumping chamber is used for trickle, and by liquid
A part of kinetic energy is changed into pressure energy, to direct liquid towards the first housing 2011a outlet 2016.Specifically
Operation principle is：Blood from the first housing 2011a entrance 2015 are flowed into after suction chamber 2017, in blade
Throw away to pumping chamber, flowed out from the first housing 2011a outlet 2016 under 2012 centrifugal action.It is preferred that,
The suction chamber 2017 is in straight-tapered structure, to ensure that the flow rate of liquid into first chamber 2013 is distributed
It is even.The pumping chamber is preferably isodistantly spaced helical structure, to reduce hydraulic loss of the liquid in flow process.
Then, the application will pass through blood of the three kinds of modes such as mechanical seal, magnetic coupling, magnetic suspension to the present invention
Pump 200 is further described in detail, referring particularly to Fig. 3 to Fig. 5.Wherein, Fig. 3 is that the present invention one is real
The structural representation of the blood pump of the making assisted circulation of ventriculus cordis device of the Mechanical Sealed Type of example is applied, Fig. 4 is the present invention one
The structural representation of the blood pump of the making assisted circulation of ventriculus cordis device of the magnetic coupling type of embodiment, Fig. 5 is the present invention one
The structural representation of the blood pump of the making assisted circulation of ventriculus cordis device of the electromagnetic levitation type of embodiment.
As shown in figure 3, the actuator mechanically drives blade 2012 to rotate, it includes an electricity
Machine 2020, the motor 2020 passes through its motor shaft 2021 or the detachably connected blade of power transmission shaft 2022
2012, the power transmission shaft 2022 is socketed on motor shaft 2021, and the blade 2012 is in motor shaft 2021
Or rotated under the drive of power transmission shaft 2022.Motor 2020 is indirectly connected with using power transmission shaft 2022, can be lifted
The service life of motor 2020, the good reliability of motor 2020.It is preferred that, the motor shaft 2021 passes through one
Individual shaft coupling is connected with power transmission shaft 2022, passes through elastic connection, better reliability.
In this programme, it is additionally provided with what is connected with above-mentioned first chamber 2013 in the first housing 2011a
Transition chamber thereof 2018, the transition chamber thereof 2018 is used for the anticoagulation for injecting certain mass concentration or volumetric concentration
The injection pressure of decoction, preferably anticoagulation decoction is more than the pressure in first chamber 2013, can so realize
Liquid automatic stream first chamber 2013 in transition chamber thereof 2018, and play a part of lubricating and cool.
In the present embodiment, the anticoagulation decoction can be injected into transition chamber thereof 2018 by a lubricating component.
The lubricating component is, for example, a peristaltic pump.
In Mechanical Sealed Type connection, if blade 2012 is connected with power transmission shaft 2022, anticoagulation decoction
Injection may also function as the effect of lubricating transmission axle 2022, that is, at least a portion of power transmission shaft 2022 is located at
In first chamber 2013.In addition, the transition chamber thereof 2018 can be located at first chamber 2013 and second chamber
Between 2014, the motor shaft 2021 of the motor 2020 or the power transmission shaft 2022 being socketed with motor shaft 2021
Transition chamber thereof 2018 is may pass through to stretch in first chamber 2013, now, the transition chamber thereof 2018 and electricity
A seal 2023 (being illustrated in Fig. 3) is provided between machine 2020, the seal 2023 can be one
Individual sealing axle sleeve, to realize the sealing of motor shaft 2021 or power transmission shaft 2022, prevents letting out for anticoagulation decoction
Leakage.
In Mechanical Sealed Type connection, the actuator also includes connection motor shaft 2021 or power transmission shaft 2022
Manual control part (not shown in Fig. 3), when the motor 2020 breaks down, pass through the hand
Dynamic control unit can motor axle 2021 or power transmission shaft 2022 rotate, so as to drive blade 2012 to rotate,
And then ensure that device can be with normal work.
In the above-described embodiments, the parts directly contacted with blood, such as the first housing 2011a, blade
2012nd, power transmission shaft 2022, seal 2023, entry conductor sheath 1010, delivery channel sheath 1020 etc. are
Expendable consumed product, that is, these parts can be changed directly, to reach dress every time using after finishing
Repeatedly used purpose is put, remaining parts not contacted directly with blood can realize reuse, without
Change, can so reduce treatment cost.
Then, for example the making assisted circulation of ventriculus cordis device of the magnetic coupling type shown in Fig. 2, its blood pump 200 uses magnetic
Coupled modes driving blade 2012 rotates.
As shown in figure 4, the actuator equally includes motor 2020 and driving magnet, the driving magnet
At least a portion connection motor 2020, and 2012 turns of blade is driven by magnetic force under the driving of motor 2020
It is dynamic；And at least a portion of the motor 2020 and the driving magnet is located in the second housing 2011b.
In the present embodiment, the driving magnet includes active magnet 2024 and passive magnet 2025；The active
Magnet 2024 connects motor 2020 and in the second housing 2011b, the passive connection of magnet 2025 oar
Leaf 2012 or the inside for being arranged at blade 2012, and the passive magnet 2025 is located at the first housing 2011a
In.
In another embodiment, the quantity of the driving magnet is one, and the blade 2012 is by magnetic material
Material is made, for playing passive magnet 2025.Either which kind of above-mentioned mode, as long as being able to ensure that oar
Leaf 2012 rotates under magneticaction.
Wherein, the magnetizing direction of the active magnet 2024 and passive magnet 2025 is axially or radially, and
The active magnet 2024 must be identical with the magnetizing direction of passive magnet 2025, and the active magnet 2024
On the magnetizing direction of passive magnet 2025.The magnetizing direction of such as described passive magnet 2025 is radial direction,
Then active magnet 2024 is arranged in passive magnet 2025 in the radial direction, conversely, as the same.
It is preferred that, it is provided with isolation structure 2026, institute between the active magnet 2024 and passive magnet 2025
Isolation structure 2026 is stated to isolate a pair of driving magnets, to play sealing function.The isolation structure 2026
It can be a division board, be horizontally set between active magnet 2024 and passive magnet 2025, structure letter
It is single, set convenient.
The operation principle of magnetic coupling type blood pump 200 is：The motor 2020 drives active magnet 2024 to rotate,
Due to there is magnetic force between passive magnet 2025 and active magnet 2024, so passive magnet 2025 is in magnetic force
In the presence of concomitant rotation, drive blade 2012 to rotate in rotation process, you can to realize the operating of blood pump 200.
In magnetic coupling type connection, the active magnet 2024 is preferably connected with a manual control part (figure
It is not shown in 4), when motor 2020 breaks down, it is possible to achieve manual actuation blade 2012 is rotated, from
And ensure device normal work.The manual control part can be a manual rocking handle, and the manual rocking handle is consolidated
Due on active magnet 2024；The manual rocking handle be arranged in parallel with motor 2020 and active magnet 2024,
When the failure of motor 2020 can not power, by manual rocking handle described in manual rotation, make active magnet 2024
Rotation, to drive passive magnet 2025 to rotate.
Similarly, in magnetic coupling type connection, the parts directly contacted with blood, such as the first housing
2011a, blade 2012, entry conductor sheath 1010 and delivery channel sheath 1020 etc. are expendable consumed product,
Can directly it change, to reach the repeatedly used purpose of device, remaining parts not contacted directly with blood
It can be achieved to reuse, without changing, can so reduce treatment cost.
In another embodiment, as shown in figure 5, the blood pump 200 drives blade 2012 to revolve by magnetic suspension
Turn.Specifically, the actuator at least includes a motor stator 2027, and the motor stator 2027 is set
It is placed in the second housing 2011b, for being rotated by magnetically-actuated blade 2012, such motor stator 2027
Do not contacted directly with blood, can be achieved to reuse.
In the present embodiment, the actuator also includes a rotor 2028, and the rotor 2028 is set
It is placed in the first housing 2011a, the rotor 2028 connects blade 2012, or the rotor 2028
It is arranged in blade 2012.In other embodiments, the actuator only includes a motor stator 2027,
And the blade 2012 is made up of magnetic material, to serve as the effect of rotor 2028.Here, ability
Field technique personnel should know：Produced by magnetic field and rotor 2028 produced by motor stator 2027
It during magnetic field interaction, can rotate rotor 2028, and then drive blade 2012 to rotate.
Preferably, isolation structure 2026 is provided between the motor stator 2027 and rotor 2028,
Seal isolation can be played a part of.
In electromagnetic levitation type connection, because rotor 2028 is directly contacted with blood, and then one may be configured as
Secondary property running stores, are directly changed.Similarly, electromagnetic levitation type connection in, the first housing 2011a, blade 2012,
Entry conductor sheath 1010 and the grade parts of delivery channel sheath 1020 also can be changed directly, and the motor stator
2027 and second housing 2011b not with contacting blood, without change, from the part-structure for causing blood pump 200
Realize repeatedly used purpose.
In the above-described embodiments, the blood pump 200 is driven by mechanical seal, magnetic coupling or magnetic suspension mode
Blade 2012 is rotated, and part configuration is few, simple in construction, effectively reduces device quality and usable floor area, together
When simplify driving process.
With continued reference to Fig. 2, the blood pump 200 also includes entrance pipe 2029 and export pipeline 2030, described
Entrance pipe 2029 connects the entrance 2015 of entry conductor sheath 1010 and blood pump 200, the outlet respectively
The outlet 2016 of the difference connection outlet catheter sheath of road 2,030 1020 and blood pump 200.The entry conductor sheath 1010
After being connected with entrance pipe 2029, can by a retention mechanism (not shown in Fig. 2), such as bolt,
Complete both fixations and sealing.Similarly, after the delivery channel sheath 1020 is connected with export pipeline 2030,
Complete fixed with sealing by another retention mechanism.
In addition, a snap joint (not shown in Fig. 2) is provided with the entrance 2015 of the blood pump 200,
The entrance 2015 is connected by the snap joint with entrance pipe 2029, afterwards, then passes through retention mechanism
Realize fixed and seal.Another snap joint (Fig. 2 is also equipped with the outlet 2016 of the blood pump 200
Not shown in), and be connected by the snap joint with export pipeline 2030, then, it can equally pass through one
Retention mechanism is completed fixed and sealed.Realize the connection between pipeline using snap joint, tool-free installation,
It is easy to operate.
In preferred version, above-mentioned making assisted circulation of ventriculus cordis device also includes controller and connects the inspection of the controller
Survey part；Wherein, the signal that the controller is used to be detected according to the detection part sends corresponding control
Signal processed is to blood pump 200, to control the running status of blood pump 200, such as described controller can complete motor
2020 or the function such as control, signal transacting, the man-machine interaction of coil of motor stator 2027.
The controller preferably at least includes two control units for being connected in parallel, respectively main control unit and standby
With unit, to realize Redundant Control；The main control unit and stand-by unit have identical function, wherein,
The main control unit is changed to stand-by unit and can completed by artificial operation, at the same the main control unit can with it is standby
Unit runs parallel, but during blood pump 200 works, only one is active.
The controller is additionally provided with alarm module, to realize warning function.Specifically, when the test section
The actual index that part is obtained can send alarm when exceeding preset range.The controller also has guidance panel,
It can be achieved manually to operate, and and upper machine communication, to realize man-machine interaction.The controller and host computer can
To realize intelligent monitoring, and system fading margin is voluntarily carried out according to patient profiles.
The detection part at least includes flow detection module, pressure detecting module and temperature detecting module.
The optional flow detection module is electromagnetism or ultrasonic flowmeter, is arranged in channel of blood flow, to obtain blood
Flow velocity, and and controller communication, the controller controls the work of blood pump 200 according to the velocity of blood flow that measures
Make state.The pressure detecting module can be disposed at the entrance 2015 of blood pump 200 or outlet 2016
Pressure detecting part, such as pressure sensor, with obtain entrance 2015 and export 2016 ends blood flow pressure
Power, and communicated with controller.The temperature detecting module can be temperature detection part, be arranged at blood flow and lead to
In road, to obtain blood heat, and and controller communication.
The controller and detection part of the present embodiment use modular construction, it is so simple in construction, adjustment and
It is easy to operate；Moreover, being detected and being controlled using modules, intelligence degree is high, beneficial to real-time prison
The running status of device is controlled, in order to be adjusted in time according to the situation of patient.
Certainly, other information part also can be set in detection part of the invention, to detect other physiology of blood
Index, limits in this regard, the present invention is not special, can mainly be added according to actual needs.
Further, the making assisted circulation of ventriculus cordis device also includes the energy supply part of connection blood pump 200, the confession
Energy part is used to provide electric energy.The energy supply part includes an attaching plug, to connect external power source,
One, which can be included, can house the battery insertion groove of battery, and preferably redundancy is set, that is, simultaneously including electricity
Source plug and battery insertion groove, so when that can not be powered by external power source, can be charged by battery,
Ensure the energy supply demand of device.
Further, the making assisted circulation of ventriculus cordis device also includes the widening parts for being used to realize additional function.
The widening parts include but is not limited to oxygenator, filter, manual control part, temperature controlling unit,
Infusion of medicine part, fixed component etc., mainly need to be configured according to actual therapeutic.
Wherein, oxygenator, filter, temperature controlling unit, infusion of medicine part can be positioned over blood pump 200
The end of outlet 2016, between export pipeline 2030 and delivery channel sheath 1020.Fixation portions part master
Be used for leg fix or body outside it is fixed, used with specific reference to patient demand, fixed component will be with blood pump
200 housing 2011 is connected, realize leg fix or body outside it is fixed.
In order to ensure inserting effect, the making assisted circulation of ventriculus cordis device also includes being arranged at catheter sheath 1010,1020
Proximal end exhaust apparatus (not shown), exhaust apparatus difference connecting conduit sheath 1010,1020
Near-end and blood pump 200, to play scavenging action, to purify blood.The exhaust apparatus is, for example, triple valve,
The specific present invention is not limited.It is optional, the entrance 2015 of the blood pump 200 and (or) exit 2012
It is provided with an exhaust apparatus.
Then, with reference to above-described embodiment, and refering to Fig. 2, the application by by taking the patient for treating left heart failure as an example,
The implementation process of the making assisted circulation of ventriculus cordis device of the present invention is described in detail：
First, femoral vein antegrade puncture is carried out, entrance seal wire is placed in atrium sinistrum by atrial septal puncture art,
After the entrance expansion pipe 1030 is entered in atrium sinistrum with entry conductor sheath 1010, entrance expansion pipe is taken out
1030, expand the sacculus 120 of entry conductor sheath 1010, you can entry conductor sheath 1010 is fixed on a left side
In atrium；
Secondly, femoral artery puncture is carried out, outlet seal wire is placed in offside femoral artery, the export expansion pipe 1040
Entered with delivery channel sheath 1020 in offside femoral artery, take out export expansion pipe 1040, make outlet catheter sheath
1020 sacculus 120 expands, so that delivery channel sheath 1020 is fixed in offside femoral artery；
Afterwards, started by controller (or host computer) controlled motor 2020, to drive blood pump 200 to work；
In the course of work, each detection part is monitored to the running status of making assisted circulation of ventriculus cordis device, and with control
Device is communicated, and realizes the real-time monitoring of device, it is possible to realize runing adjustment by the controller.
The making assisted circulation of ventriculus cordis device 10 of the present invention needs ventricle auxiliary mainly for middle or short term (within about 30 days)
Help or emergency treatment patient, including postoperative circulatory support in acute heart failure treatment, chronic heart failure rehabilitation, art
Etc. illness, plan is configured at operating room, ICU wards and rescue room etc..
Compared to prior art, catheter sheath 100 provided by the present invention can pass through elasticity after inserting in vivo
The shape in portion 120 is recovered, and elastic portion 120 is close to vascular wall, atrium sinistrum or the interior tissue of atrium dextrum
On, so as to realize fixation of the catheter sheath 100 in blood vessel, atrium sinistrum or atrium dextrum.
Making assisted circulation of ventriculus cordis device 10 provided by the present invention includes above-mentioned catheter sheath 100, due to catheter sheath 100
Position can be fixed after inserting in vivo, so as to realize accurate positioning, thereby ensure that blood flow direction
It is stable, it is to avoid existing conduit because position do not fix and caused by risk problem, which ensures that ventricle auxiliary
The security that EGR is used, also improves the clinical practice of making assisted circulation of ventriculus cordis device.
Especially, making assisted circulation of ventriculus cordis device 10 of the invention by blade 2012 and actuator by carrying out fluid
Isolation, so, can directly be changed with the blade 2012 of contacting blood, and not with blood not in contact with driving
At least a portion of part can be achieved to reuse, and thus improve can making repeatedly for making assisted circulation of ventriculus cordis device 10
With property, treatment cost is reduced.
In addition, the making assisted circulation of ventriculus cordis device 10 of the present invention includes dismountable blood pump 200, blood pump 200 is wrapped
Housing 2011, blade 2012 and actuator are included, housing 2011 includes the first housing 2011a and the second housing
2011b, both are detachably connectable, and blade 2012 is arranged in the first housing 2011a, is so easy to more
Exchange blood transfusion each part of pump 200, and on the other hand, part driving part and blood is contactless, repeat utilization with
Reduce treatment cost.
In addition, the blood pump 200 of the present invention is directly driven by motor 2020, or pass through magnetic coupling or magnetic suspension
Mode drives, and part configuration is few, simple in construction, device quality and usable floor area is effectively reduced, while simple
Driving process is changed.
Foregoing description is only the description to present pre-ferred embodiments, not to any limit of the scope of the invention
Calmly, the those of ordinary skill in field of the present invention does according to the disclosure above content any change, modification, belong to
In the protection domain of claims.
Claims (20)
1. a kind of catheter sheath, including a catheter body, it is characterised in that the catheter body can shape with one
The elastic portion that shape recovers, the elastic portion is made up of shape-memory material and the elastic portion is in nonlinear type shape
Shape.
2. catheter sheath according to claim 1, it is characterised in that the catheter body is formed in one
Structure.
3. catheter sheath according to claim 1, it is characterised in that the elastic portion is in curly or spiral shell
Revolve shape.
4. catheter sheath according to claim 1, it is characterised in that the elastic portion is thermoplasticity shape
Remember high polymer material.
5. catheter sheath according to claim 4, it is characterised in that the thermoplasticity shape memory high score
Sub- material is polystyrene type or polycaprolactone type.
6. catheter sheath according to claim 1, it is characterised in that the inwall of the catheter body and/
Or anticoagulant coatings are provided with outer wall.
7. catheter sheath according to claim 1, it is characterised in that the distal end of the catheter body is set
There are development point or developing ring.
8. catheter sheath according to claim 1, it is characterised in that the catheter body is by developing material
It is made.
9. a kind of making assisted circulation of ventriculus cordis device, for accessory heart blood circulation, it is characterised in that including such as
The blood pump of catheter sheath and the connection catheter sheath in claim 1 to 8 described in any one.
10. making assisted circulation of ventriculus cordis device according to claim 9, it is characterised in that the blood pump bag
Housing, blade and actuator are included, the housing has first chamber and second chamber, the first chamber tool
There is entrance and exit, for causing the blood pump to be connected with external fluid, and the first chamber and described the
Fluid isolation between two chambers；The blade is located at the first chamber, at least a portion position of the actuator
In the second chamber, the actuator is used to drive the blade to rotate.
11. making assisted circulation of ventriculus cordis device according to claim 10, it is characterised in that the actuator
At least include a motor stator, the motor stator is arranged in the second chamber, for passing through magnetic force
The blade is driven to rotate.
12. making assisted circulation of ventriculus cordis device according to claim 11, it is characterised in that the actuator
Also include a rotor, the rotor is arranged in the first chamber；The rotor connects
Connect the blade or the rotor is arranged in the blade.
13. making assisted circulation of ventriculus cordis device according to claim 11, it is characterised in that the blade by
Magnetic material is made.
14. making assisted circulation of ventriculus cordis device according to claim 10, it is characterised in that the actuator
Including motor, the motor passes through the detachably connected blade of motor shaft or power transmission shaft, the motor position
In the second chamber, seal is provided between the first chamber and the second chamber.
15. making assisted circulation of ventriculus cordis device according to claim 14, it is characterised in that the blood pump is also
Including transition chamber thereof, it is arranged between the first chamber and the second chamber, the transition chamber thereof and institute
State first chamber fluid communication, the transition chamber thereof and the second chamber fluid isolation, the motor shaft or
Power transmission shaft is stretched into the first chamber through the transition chamber thereof.
16. making assisted circulation of ventriculus cordis device according to claim 10, it is characterised in that the actuator
Including motor and driving magnet；At least a portion of the driving magnet connects the motor, and in the electricity
The blade is driven to rotate by magnetic force under the driving of machine；At least one of the motor and the driving magnet
Divide and be located in the second chamber.
17. making assisted circulation of ventriculus cordis device according to claim 16, it is characterised in that the driving magnetic
Body includes active magnet and passive magnet；The active magnet connects the motor and positioned at the second chamber
In, the passive magnet connects the blade or is arranged at the inside of the blade, and the passive magnet position
In the first chamber.
18. making assisted circulation of ventriculus cordis device according to claim 17, it is characterised in that the active magnetic
Body is identical with the magnetizing direction of passive magnet, and the active magnetic body is located on the magnetizing direction of passive magnet.
19. making assisted circulation of ventriculus cordis device according to claim 16, it is characterised in that the driving magnetic
Body includes active magnet, and the active magnet connects the motor and in the second chamber, and described
Blade is made up of magnetic material.
20. making assisted circulation of ventriculus cordis device according to claim 10, it is characterised in that the housing bag
The first housing and the second housing are included, the first shell body forms the first chamber, and the second shell body is formed
The second chamber, first housing and second housing are detachably connectable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610087572.7A CN107080871B (en) | 2016-02-16 | 2016-02-16 | Catheter sheath and ventricular assist circulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610087572.7A CN107080871B (en) | 2016-02-16 | 2016-02-16 | Catheter sheath and ventricular assist circulation device |
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| CN107080871A true CN107080871A (en) | 2017-08-22 |
| CN107080871B CN107080871B (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610087572.7A Active CN107080871B (en) | 2016-02-16 | 2016-02-16 | Catheter sheath and ventricular assist circulation device |
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| CN107441581A (en) * | 2017-09-29 | 2017-12-08 | 中山大学附属第医院 | Femoral artery shunting perfusion tube |
| CN111359076A (en) * | 2020-03-16 | 2020-07-03 | 中国人民解放军陆军特色医学中心 | Angiography catheter convenient to control |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| CN112237681A (en) * | 2020-09-15 | 2021-01-19 | 安徽通灵仿生科技有限公司 | Integrated minimally invasive catheter type heart auxiliary device |
| CN112843463A (en) * | 2019-11-28 | 2021-05-28 | 丁海雁 | Artery blood circulation pipeline assembly and artificial artery blood extracorporeal circulation system |
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
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| US11717670B2 (en) | 2017-06-07 | 2023-08-08 | Shifamed Holdings, LLP | Intravascular fluid movement devices, systems, and methods of use |
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
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| US12076545B2 (en) | 2018-02-01 | 2024-09-03 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US11229784B2 (en) | 2018-02-01 | 2022-01-25 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
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| CN111359076B (en) * | 2020-03-16 | 2021-10-08 | 中国人民解放军陆军特色医学中心 | Angiography catheter convenient to control |
| CN111359076A (en) * | 2020-03-16 | 2020-07-03 | 中国人民解放军陆军特色医学中心 | Angiography catheter convenient to control |
| CN112237681B (en) * | 2020-09-15 | 2023-09-22 | 安徽通灵仿生科技有限公司 | Integrated minimally invasive catheter type heart auxiliary device |
| CN112237681A (en) * | 2020-09-15 | 2021-01-19 | 安徽通灵仿生科技有限公司 | Integrated minimally invasive catheter type heart auxiliary device |
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| CN107080871B (en) | 2020-11-13 |
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