CN103446635A - In vitro driving method of artificial heart pump - Google Patents
In vitro driving method of artificial heart pump Download PDFInfo
- Publication number
- CN103446635A CN103446635A CN2013104056232A CN201310405623A CN103446635A CN 103446635 A CN103446635 A CN 103446635A CN 2013104056232 A CN2013104056232 A CN 2013104056232A CN 201310405623 A CN201310405623 A CN 201310405623A CN 103446635 A CN103446635 A CN 103446635A
- Authority
- CN
- China
- Prior art keywords
- artificial heart
- driving
- driving method
- vitro
- heart pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to an in vitro driving method of an artificial heart pump, belongs to the field of an artificial heart, and particularly relates to a non-contact type in vitro magnetic driving system aiming at the artificial heart pump. The in vitro driving method adopts in vitro driving devices and a pump body arranged in the ascending aorta blood vessel, wherein at least one pair of driving devices are available, are respectively arranged at the two sides of the pump body and are arranged together with the pump body on the same line; each driving device consists of a driving motor and a permanent magnet cylinder with high remanence, wherein each permanent magnet cylinder is magnetized along the radial direction, and is driven to rotate by the driving motor so as to generate a changing magnetic field; the pump body is a cylindrical shell, and an auger-shaped impeller is arranged in the pump body; the auger-shaped impeller is made from a permanent magnet with high remanence, and is magnetized along the radial direction. Compared with an existing single-stage driving way, the in vitro driving method has the advantages of being high in torque transfer capability and stability; compared with an existing two-stage driving way, the in vitro driving method has the advantages of being small in volume of foreign matters in a human body, high in reliability, strong in driving force and balanced in magnetic field force applied to the artificial heart pump body.
Description
Technical field
The invention belongs to the artificial heart field, particularly the external magnetic drive system of artificial heart pump's non-contact type.
Background technology
Heart failure (heart failure) is a kind of disease of serious threat human health.For the most effective Therapeutic Method of advanced heart failure, be that heart transplantation and artificial heart are auxiliary.Because heart transplantation can't meet the needs that heart failure is treated far away, market constantly increases for the demand of artificial heart, thereby its market prospect is very good.In order to reduce the damage of Traditional Man heart for the patient, adopt the artificial heart driving device of external magnetic type of drive to be devised.This design has fundamentally solved implanted artificial heart's the temperature rise of Traditional Man heart and the problems such as infection that the percutaneous wire causes.Due to distance large (usually between 150mm～180mm) between external magnetic drive unit and implanted artificial heart, external magnetic drive unit is delivered to the energy decay rapidly of artificial heart, thereby causes the stability of artificial heart and performance significantly to reduce.In order to address this problem, (application number: 200910089092.4) propose to adopt the two-stage kind of drive, the inner first passive magnet of placing in the thoracic cavity between magnetic drive unit and artificial heart improves transmission of torque efficiency in vitro in patent application " the external drive system of a kind of permanent-magnet for artificial heart ".Although this mode can increase the torque of artificial heart, have following potential risk aspect implant volume and artificial heart stressed: at first, the first passive magnet has increased the foreign body volume implanted.Increase patient's surgical injury and postoperative infection probability on the one hand, increased on the other hand the probability that the body inner part breaks down; Secondly, due to the first passive magnet between external magnetic drive unit and artificial heart, the magnetic field force imbalance that therefore causes artificial heart to be subject to, but towards the first passive magnet one side, can produce traction action to the ascending aorta blood vessel like this, thereby increase the probability of ascending aorta vascular lesion.
Summary of the invention
The objective of the invention is to overcome existing external magnetic drive unit transmission distance little and cause the magnetic field force induced unbalanced shortcoming of artificial heart, a kind of driving method for the external magnetic driving of artificial heart is provided.
To achieve these goals, the present invention has taked following technical scheme:
The external driving method of a kind of artificial heart pump, adopt external driving device and the pump housing that is arranged in the ascending aorta blood vessel, and wherein said driving device is at least one pair of, lays respectively at described pump housing both sides, with the pump housing, is a linear formula.
Described driving device is comprised of the permanent magnetism cylinder of drive motors and high remanent magnetism, permanent magnetism cylinder radial magnetizing wherein, and drive motors drives the magnetic field that the rotation of permanent magnetism cylinder changes; The described pump housing is cylinder blanket, and the spiral impeller wherein is installed, and this impeller adopts the permanent magnet of high remanent magnetism, and radial magnetizing.
In order to improve driving force, described permanent magnetism cylinder fills the magnetic pole more than two pairs, NS utmost point alternative arrangement, and number of magnetic poles is even number.
In order to improve driving force, described impeller fills the magnetic pole more than two pairs.
In order to improve interaction, described permanent magnetism cylinder and the described pump housing be arranged in parallel.
In order to improve the work efficiency of the pump housing, described impeller is bipacking-auger or three spiral impellers.。
The present invention and existing single-stage type of drive (driving device with the artificial heart pump housing) are compared, and have advantages of that torque transmission capability is large and stability is high.Compare with existing two-stage drive mode, have an inside of human body foreign body volume little, reliability is high, and driving force is strong, and the advantage of the suffered magnetic field force balance of the artificial heart pump housing.
The accompanying drawing explanation
Fig. 1 is the principle schematic of the external driving method of a kind of artificial heart pump of the present invention.
Fig. 2 is the schematic diagram of an embodiment of the external driving method of a kind of artificial heart pump of the present invention.
Fig. 3 is the cross sectional representation of a kind of mode that magnetizes of each permanent magnet in the present invention.
In figure: 1, first pair of driving device, 2, second pairs of driving devices, 3, the 3rd pairs of driving devices, 4, the pump housing, 5 body surfaces.
The specific embodiment
Below in conjunction with accompanying drawing, 1-3 is described in further details the present invention.
The external driving method of artificial heart pump in the present invention is to be arranged in pairs with driving device, the pump housing institute of artificial heart that makes to be arranged in the ascending aorta blood vessel is magnetic field force induced in poised state, thereby avoid the ascending aorta blood vessel to be subject to for a long time the tractive of the artificial heart pump housing and cause pathological changes, and increasing the driving force to impeller in the pump housing.In Fig. 1, driving device has three pairs, respectively first pair of driving device 1, second pair of driving device 2, the 3rd pair of driving device 3, three pairs of driving devices are uniformly distributed as far as possible, and make the point midway of the pump housing 4 between two driving devices as far as possible, also will make each driving device be positioned at same plane, the artificial heart system of arranging like this is best as far as possible.
Driving device is comprised of the permanent magnetism cylinder of drive motors and high remanent magnetism, permanent magnetism cylinder radial magnetizing wherein, and drive motors drives the magnetic field that the rotation of permanent magnetism cylinder changes; The described pump housing is cylinder blanket, and the spiral impeller wherein is installed, and this impeller adopts the permanent magnet of high remanent magnetism, and radial magnetizing.In order to improve driving force, the permanent magnetism cylinder can evenly fill the magnetic pole more than two pairs; And impeller also can evenly fill the magnetic pole more than two pairs, NS utmost point alternative arrangement, but more than two pairs, to need be the magnetic pole (as Fig. 3) of even-even.In order to make driving force the strongest, permanent magnetism cylinder and the pump housing will be in a parallel set as far as possible.
Fig. 2 is an embodiment who adopts the external driving method of the artificial heart pump of the present invention, and driving device only has a pair of, and the cylindrical diameter of the permanent magnetism of driving device is 50mm, and length is 100mm, and the diameter of the pump housing is 20mm, length 30mm.A pair of driving device is placed in respectively the body surface 5 of the oxter, left and right of human body.One of them driving device is apart from the about 130mm of artificial heart, and another driving device is apart from the about 150mm of artificial heart.By evidence, such embodiment can transmit for impeller the torque of 0.26N.m, far away higher than traditional external magnetic type of drive.
Improve torque for larger, can a pair of driving device be installed at shirtfront and the back of human body again, such embodiment can transmit for impeller the torque of 0.5N.m.
Want to improve again torque, can be on the left side of the shirtfront of human body and the right side of back, and on the right side of shirtfront and the left side of back, two pairs of driving devices are installed again, such embodiment can transmit for impeller the torque of 1.0N.m.
Claims (6)
1. the external driving method of artificial heart pump, adopt external driving device and the pump housing that is arranged in the ascending aorta blood vessel, and it is characterized in that: described driving device is at least one pair of, lays respectively at described pump housing both sides, with the pump housing, is a linear formula.
2. the external driving method of a kind of artificial heart pump according to claim 1, it is characterized in that: described driving device is comprised of the permanent magnetism cylinder of drive motors and high remanent magnetism, permanent magnetism cylinder radial magnetizing wherein, drive motors drives the magnetic field that the rotation of permanent magnetism cylinder changes; The described pump housing is cylinder blanket, and the spiral impeller wherein is installed, and this impeller adopts the permanent magnet of high remanent magnetism, and radial magnetizing.
3. the external driving method of a kind of artificial heart pump according to claim 2, it is characterized in that: described permanent magnetism cylinder fills the magnetic pole more than two pairs, NS utmost point alternative arrangement, and number of magnetic poles is even number.
4. the external driving method of a kind of artificial heart pump according to claim 2, it is characterized in that: described impeller fills the magnetic pole more than two pairs.
5. according to the external driving method of the described a kind of artificial heart pump of any one in claim 2-4, it is characterized in that: described permanent magnetism cylinder and the described pump housing be arranged in parallel.
6. the external driving method of a kind of artificial heart pump according to claim 5, it is characterized in that: described impeller is bipacking-auger or three spiral impellers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104056232A CN103446635A (en) | 2013-09-09 | 2013-09-09 | In vitro driving method of artificial heart pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104056232A CN103446635A (en) | 2013-09-09 | 2013-09-09 | In vitro driving method of artificial heart pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103446635A true CN103446635A (en) | 2013-12-18 |
Family
ID=49729738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104056232A Pending CN103446635A (en) | 2013-09-09 | 2013-09-09 | In vitro driving method of artificial heart pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103446635A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105327412A (en) * | 2015-11-26 | 2016-02-17 | 曾宪林 | Heart function assisting device used in operation |
| CN111450338A (en) * | 2020-04-10 | 2020-07-28 | 北京工业大学 | Multistage magnetic transmission type mechanical auxiliary circulation optimization system |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| CN113109064A (en) * | 2021-03-17 | 2021-07-13 | 北京工业大学 | In-vitro evaluation test system and test method for cardiovascular implant |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249288A (en) * | 2008-04-11 | 2008-08-27 | 清华大学 | External magnetically-actuated device for supplying power for blood pump |
| CN201308666Y (en) * | 2008-11-22 | 2009-09-16 | 燕山大学 | Artificial heart auxiliary device of conical rotor driven by external field |
-
2013
- 2013-09-09 CN CN2013104056232A patent/CN103446635A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249288A (en) * | 2008-04-11 | 2008-08-27 | 清华大学 | External magnetically-actuated device for supplying power for blood pump |
| CN201308666Y (en) * | 2008-11-22 | 2009-09-16 | 燕山大学 | Artificial heart auxiliary device of conical rotor driven by external field |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105327412A (en) * | 2015-11-26 | 2016-02-17 | 曾宪林 | Heart function assisting device used in operation |
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11717670B2 (en) | 2017-06-07 | 2023-08-08 | Shifamed Holdings, LLP | 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 |
| 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 |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| CN111450338A (en) * | 2020-04-10 | 2020-07-28 | 北京工业大学 | Multistage magnetic transmission type mechanical auxiliary circulation optimization system |
| CN111450338B (en) * | 2020-04-10 | 2022-05-17 | 北京工业大学 | Multistage magnetic transmission type mechanical auxiliary circulation optimization system |
| CN113109064A (en) * | 2021-03-17 | 2021-07-13 | 北京工业大学 | In-vitro evaluation test system and test method for cardiovascular implant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103446635A (en) | In vitro driving method of artificial heart pump | |
| CN101618240B (en) | External magnetic field driving system of permanent magnet used for artificial heart | |
| CN103446634B (en) | A kind of artificial heart self-balancing body external magnetic drive system | |
| ES2525941T3 (en) | A device and method to control the movement of a mitral valve in a controlled manner | |
| US8961387B2 (en) | Transcutaneous magnetic energy transfer device | |
| CN103977464A (en) | Implantable miniature axial blood pump with gradually-changing flow zone at outlet | |
| CN107412894A (en) | A kind of heat sink of implantable cardiac auxiliary blood pump | |
| CN101015716A (en) | Implanted non-contact minisize axial-flow blood pump | |
| CN101426415B (en) | Endoscopic capsule | |
| CN106620912A (en) | Permanent magnet brushless direct current motor type artificial heart pump | |
| CN106787588B (en) | A kind of magnetic driving equipment | |
| CN102446612A (en) | Permanent magnet and low-frequency rotating constant-strength magnetic field treatment device employing the same | |
| CN106593891B (en) | A kind of magnetic driving equipment and electromagnetic drive pump | |
| RO131676A0 (en) | Blood circulation assist device | |
| CN102028980B (en) | Bionic artificial heart blood pump linearly driven by permanent magnetic field in vitro | |
| Xia et al. | Non-contact driving device of artificial heart and its magnetic field analysis | |
| CN2504815Y (en) | Saddle-shape outer driver of permanent-magnet rotor turbine in artery | |
| CN203984210U (en) | A kind of implantable drag cup brushless electric machine | |
| CN105343951A (en) | Ventricular assist device | |
| CN203971003U (en) | A kind ofly can effectively reduce thrombotic axial flow blood pump | |
| CN202892503U (en) | Magnetic axis drive type cardiac apex miniature centrifugal pump | |
| Xia et al. | The electromagnetic torque and eddy current loss analysis of the non-contact driving device of artificial heart | |
| CN104056312A (en) | Implantable mini-type shaftless axial blood pump | |
| GB2539643A (en) | Artificial heart | |
| CN102755672A (en) | Blood pump with high permeability material impeller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131218 |