CN112546423A - Extracorporeal membrane oxygenation pump driving device - Google Patents
Extracorporeal membrane oxygenation pump driving device Download PDFInfo
- Publication number
- CN112546423A CN112546423A CN202011394773.4A CN202011394773A CN112546423A CN 112546423 A CN112546423 A CN 112546423A CN 202011394773 A CN202011394773 A CN 202011394773A CN 112546423 A CN112546423 A CN 112546423A
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- CN
- China
- Prior art keywords
- extracorporeal membrane
- drive apparatus
- pump drive
- driving device
- oxygenation 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
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- 238000002618 extracorporeal membrane oxygenation Methods 0.000 title claims abstract description 28
- 238000006213 oxygenation reaction Methods 0.000 claims abstract description 8
- 210000004072 lung Anatomy 0.000 claims abstract description 7
- 239000012528 membrane Substances 0.000 claims abstract description 7
- 230000005291 magnetic effect Effects 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 3
- 210000004369 blood Anatomy 0.000 abstract description 12
- 239000008280 blood Substances 0.000 abstract description 12
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 210000000601 blood cell Anatomy 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- -1 graphite alkene Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
Classifications
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
Abstract
The embodiment of the invention discloses an extracorporeal membrane lung oxygenation pump driving device, which further optimizes the structure of the pump driving device, designs the pump driving device into an independent body, enables a pump head to be detachable from the centrifugal driving device, facilitates transportation, carrying and use during ECMO emergency treatment, enables magnets in the pump driving device to be obliquely arranged and to be matched with magnets arranged in an inner cavity of the pump head, reduces acting force of a rotor in the pump head on a shaft so as to reduce abrasion of the shaft and reduce blood damage.
Description
Technical Field
The embodiment of the invention relates to the technical field of extracorporeal membrane oxygenation, in particular to a driving device of an extracorporeal membrane oxygenation pump.
Background
ECMO is an English abbreviation of Extracorporeal Membrane Oxygenation (Extracorporeal Membrane Oxygenation), which is an Extracorporeal circulation technology taken out of a heart operating room, and the principle of the Extracorporeal Membrane Oxygenation is that venous blood in a human body is led out of the human body and injected into an artery or vein system of a patient after being oxygenated by an artificial heart-lung bypass made of special materials, so that Extracorporeal respiration support or heart support is achieved, and Oxygenation blood supply of human organ tissues is maintained. Basic structure of ECMO: the blood circulation monitoring system comprises an intravascular cannula, a connecting pipe, a power pump (artificial heart), an oxygenator (artificial lung), an oxygen supply tube, a monitoring system and the power pump (artificial heart), and blood flow is realized mainly by driving a centrifugal pump head to rotate. Can be used independently or externally connected with a matched artificial heart-lung machine and an extracorporeal membrane oxygenation system. The disposable part is usually formed into a kit clinically, and the non-disposable part is stored in a binding way and is designed to be movable, so that the emergency capacity is improved.
There are two main types of power pumps in clinical use: rolling pumps and centrifugal pumps. The rolling pump is not easy to move and difficult to manage. The centrifugal pump is the first-selected centrifugal pump of first aid, and the advantage is that the installation is removed conveniently, easy management, and blood destroys for a short time. Considering the demand of ECMO first aid, in order to conveniently transport, carry and use, the centrifugal pump driving device supporting the artificial heart drive still needs to be further optimized in structure, reduced in volume and weight and reduced in blood damage.
Disclosure of Invention
The embodiment of the invention aims to provide a driving device of an extracorporeal membrane lung oxygenation pump, which is used for solving the technical problems that the structure of the existing centrifugal pump driving device for supporting the drive of an artificial heart is optimized, blood is easy to damage and the like.
In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows:
the invention provides an extracorporeal membrane lung oxygenation pump driving device, which comprises:
the inner part of the basal body is hollow to form a basal body inner cavity;
the power driving piece is arranged on the upper part of the base body;
a magnetic member, comprising: a housing and at least one magnet tiltably mounted in the housing interior cavity, the housing upper portion being open and rotated by the powered driver;
and the pump head mounting part is covered on the top of the base body, and an opening in the middle of the pump head mounting part forms a mounting hole for mounting a centrifugal pump head.
Preferably, the pump driving device further includes: the fixing piece is used for installing the power driving piece on the upper part of the base body through a sealing piece, the fixing piece is used for separating the power driving piece from the magnetic piece, and the pump head installation piece is installed on the fixing piece.
Preferably, the installation angle of the magnet is greater than or equal to 15 degrees and less than or equal to 85 degrees.
Preferably, a protruding portion is formed in the middle of the upper side of the fixing member, the protruding portion is provided with a first through hole in the middle and at least one second through hole arranged around the first through hole, the power driving member is mounted on the fixing member through the second through hole, a driving shaft of the power driving member passes through the first through hole, and the housing is mounted on the driving shaft.
Preferably, the fixing member periphery forms a heat dissipation fold.
Preferably, a control circuit board and a driving control board are arranged in the base body, the control circuit board is connected with the driving circuit board and used for controlling the driving control board, and the driving control board is used for driving the power driving part to operate.
Preferably, the base body is provided with a display screen, at least one control key and at least one indicator light, and the display screen, the control key and the indicator light are respectively connected with the control circuit board.
Preferably, the pump driving device further includes: the rear cover is covered at the bottom of the base body, the middle part of the rear cover protrudes inwards to form an embedded part, and the embedded part is inserted into the inner cavity of the base body.
Preferably, a power supply external interface and a flow sensor interface are arranged on the embedding part, and the power supply external interface and the flow sensor are connected to the control circuit board.
Preferably, the base body is a cube or a cuboid, and the inner cavity of the base body is a cylindrical cavity.
Compared with the prior art, the embodiment of the invention further optimizes the structure of the pump driving device, the pump driving device is designed into an independent body, the pump head can be detached from the centrifugal driving device, the transportation, carrying and use are convenient during ECMO emergency treatment, the magnets in the pump driving device are obliquely arranged and can be matched with the magnets arranged in the inner cavity of the pump head, the acting force of a rotor in the pump head on a shaft is reduced, the abrasion of the shaft is reduced, and the blood damage is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions, and it will be understood by those skilled in the art that the drawings are not necessarily drawn to scale, in which:
FIG. 1 is a schematic structural diagram of an extracorporeal membrane oxygenation pump driving device disclosed in the present invention;
FIG. 2 is a schematic structural diagram of a rear cover of an extracorporeal membrane oxygenation pump driving device disclosed in the present invention;
FIG. 3 is a schematic exploded view of an extracorporeal membrane oxygenation pump driving device disclosed in the present invention;
fig. 4 is a structural sectional view of an extracorporeal membrane oxygenation pump driving device and a centrifugal pump head after being assembled.
In the above drawings:
1. a substrate; 11. a substrate inner cavity; 12. a panel; 121. a display screen; 122. a control key; 123. an indicator light; 13. a control circuit board; 14. a drive control board; 2. a powered drive member; 21. a drive shaft; 3. a magnetic member; 31. a housing; 32. a magnet; 4. a pump head mounting; 41. mounting holes; 42. buckling; 5. a fixing member; 51. heat dissipation folds; 52. a seal ring; 53. a projection; 6. a rear cover; 61. a power supply external interface; 62. a flow sensor interface; 7. a pump head; 71. a centrifugal impeller; 72. a magnetic drive body; 73. a blood inlet; 74. a bleeding outlet.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to meet the ECMO emergency treatment needs, the transportation, carrying and use are convenient. As shown in fig. 1 and fig. 3, an embodiment of the present invention discloses an extracorporeal membrane pulmonary oxygenation pump driving device, which includes: base 1, power drive piece 2, magnetic part 3 and pump head mounting 4. Further, the power driving part 2 is arranged on the upper part of the base body 1; the magnetic member 3 includes: a housing 31 and at least one magnet 32 obliquely installed into an inner cavity of the housing 31, the housing 31 being open at an upper portion and being driven to rotate by a power driving member 2, the power driving member 2 being a motor; the pump head mounting part 4 is covered on the top of the base body 1, and a mounting hole 41 for mounting the centrifugal pump head 7 is formed in the middle opening of the pump head mounting part 4.
The embodiment of the invention optimizes the structure of the pump driving device and provides the extracorporeal membrane oxygenation pump driving device.
Referring to fig. 4, the magnets 32 in the pump drive and the magnets 72 in the pump head may be ferromagnetic, preferably, the housing 31 forms a bowl-shaped interior cavity, at least one magnet 32 is evenly distributed in the bowl-shaped interior cavity, the lower part of the pump head 7 has an outer profile matching the housing 31, the lower part of the pump head 7 is mounted to the pump head mounting member 4 through the mounting hole 41, the magnets 72 are also obliquely arranged in the interior cavity of the pump head 7, and the number of magnets 72 and magnets 32 is the same. Preferably, the mounting angle of the magnet 32 and the magnet 72 is greater than or equal to 15 degrees and less than or equal to 85 degrees. In the interior of the housing 31, the magnet 32 interacts with a magnet 72 in the interior of the pump head 7, which, when the magnetic element 3 is rotated, drives a centrifugal impeller 71, which is integral with the magnet 72, into rotation. The inner cavity of the pump head 7 is upwards provided with a blood inlet 73, and the side surface of the inner cavity of the pump head 7 is provided with a blood outlet 74.
According to the pump driver, the magnets in the pump driving device are obliquely arranged and can be matched with the magnets arranged in the inner cavity of the pump head, so that the acting force of a rotor in the pump head on a shaft is reduced, the abrasion of the shaft is reduced, and the blood damage is reduced.
Referring to fig. 1, 3 and 4, the interior of the substrate 1 is hollow to form a substrate cavity 11; the magnetic driving apparatus further includes: mounting 5, mounting 5 installs power driving piece 2 in base member 1 upper portion through sealing washer 52, base member inner chamber 11 upper portion forms the outer opening of outside extension, the position that outer opening and base member inner chamber 11 meet forms the installation step, the one end that drive shaft 21 was kept away from to power driving piece 2 is provided with the spiral elastic component, power driving piece 2 passes through mounting 5 pressure equipment to the installation step on, because the existence of spiral elastic component, the one end of guaranteeing that power driving piece 2 keeps away from the drive shaft can stabilize. A fixing member 5 separates the powered driver 2 and the magnetic member 3, and a pump head mounting member 4 is mounted to the fixing member 5.
Referring to fig. 1 and 3, a protrusion 53 is formed at the middle of the upper side of the fixing member 5, the protrusion 53 is provided with a first through hole in the middle and at least one second through hole arranged around the first through hole, the power driving member 2 is mounted to the fixing member 5 through the second through hole, the driving shaft 21 of the power driving member 2 passes through the first through hole, and the housing 31 is mounted to the driving shaft 21.
In this embodiment, the power driving member 2 and the magnetic member 3 are separated by the fixing member 5, which is beneficial to the stable installation of the power driving member 2 and the magnetic member 3. On the other hand, because the power driving member 2 is easy to generate heat when operating, the heat generated by the power driving member 2 is isolated in the cavity of the base body by the fixing member, thereby preventing a large amount of heat generated by the power driving member 2 from influencing the operation of the magnet 3 and destroying blood cells in the inner cavity of the pump head 7.
Preferably, referring to fig. 1, 3 and 4, the fixing member 5 is formed with heat dissipating wrinkles 51 at the periphery thereof, and the fixing member 5 is made of graphene. Whether the heat dissipation wrinkles 51 are arranged or the fixing member is made of graphene, the heat dissipation performance of the fixing member 5 is further improved. The heat dissipation fold is favorable to increasing the heat radiating area of mounting 5, and the graphite alkene material is favorable to improving the heat conductivity of mounting 2.
Further, the housing 31 and the pump head mounting member 4 may be made of non-metal members, which is advantageous to reduce the weight of the magnetic driving apparatus and facilitate carrying compared with metal members. The pump head mounting part 4 is further provided with a buckle 42 at one side, and the pump head 7 is inserted into the opening in the middle of the pump head mounting part 4 and is fixed through the buckle 42. This further facilitates a secure mounting of the pump head 7.
Preferably, referring to fig. 3, a panel 12, a control circuit board 13 and a driving control board 14 are arranged on the front side plate of the base body 1 from outside to inside, the driving control board 14 is used for driving the power driving part 2 to operate, the control circuit board 13 is used for controlling the driving control board 14, a display screen 121, at least one control key 122 and at least one indicator light 123 are arranged on the panel 12, and the display screen 121, the at least one control key 122 and the at least one indicator light 123 are electrically connected with the control circuit board 13. Further, the display screen 121 may be a touch display screen, or an OLED display screen, and may display indexes such as flow, time, rotation speed, and electric quantity, and may touch adjustment parameters. The rotating speed is controlled through the keys, and the control is more stable and controllable than that of a knob. Also, indicator light 123 may be an OLED indicator light for indicating an operational, alarm condition of powered driver 2.
Referring to fig. 1, 3 and 4, the magnetic driving apparatus further includes: the rear cover 6 is covered at the bottom of the base body 1, the middle part of the rear cover 6 protrudes inwards to form an embedded part, and the embedded part is inserted into the inner cavity 1 of the base body. Referring to fig. 2 and 3, the rear cover 6 is provided with a power supply external interface 61 and a flow sensor interface 62, the power supply external interface 61 and the flow sensor interface 62 are electrically connected to the control circuit board 13 respectively, the power supply external interface 61 can be connected with an external power supply module, the power supply module adopts a dual power supply management mode of a battery and a power adapter, the battery is used for supplying power in the first aid and the transferring process, and the operating room can be connected with a stable power supply through the adapter, so that the power supply duration is prolonged. The flow sensor interface 62 is externally connected to a flow sensor module for monitoring the flow of liquid in the pipeline.
Referring to fig. 1, 3 and 4, the base body 1 is a cube or a cuboid, and the inner cavity 11 of the base body is a cylindrical cavity, so that the product stability of the magnetic driving device is improved.
The working principle of the extracorporeal membrane oxygenation pump driving device disclosed in the embodiment of the invention is as follows: the power driving part 2 drives the magnetic part 3 to rotate at a high speed, and the magnetic part 3 drives the centrifugal impeller 71 to rotate so as to achieve the function of pumping blood. Wherein, drive power driving piece 2 through drive control board 14 and move, control circuit board 13 control drive control board 14, the OLED display screen of being connected with control circuit board 13 can show power driving piece 2 running information (rotational speed, open and stop and flow sensor etc.), control button on control circuit board 14 can set up power driving piece 2 running parameter (rotational speed, open and stop etc.), the OLED pilot lamp of being connected with control circuit board 13 can instruct power driving piece 2's operation, the alarm condition.
Compared with the prior art, the embodiment of the invention further optimizes the structure of the pump driving device, the pump driving device is designed into an independent body, the pump head can be detached from the centrifugal driving device, the transportation, carrying and use are convenient during ECMO emergency treatment, the magnets in the pump driving device are obliquely arranged and can be matched with the magnets arranged in the inner cavity of the pump head, the acting force of a rotor in the pump head on a shaft is reduced, the abrasion of the shaft is reduced, and the blood damage is reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An extracorporeal membrane lung oxygenation pump drive apparatus, the pump drive apparatus comprising:
the inner part of the basal body is hollow to form a basal body inner cavity;
the power driving piece is arranged on the upper part of the base body;
a magnetic member, comprising: a housing and at least one magnet tiltably mounted in the housing interior cavity, the housing upper portion being open and rotated by the powered driver;
and the pump head mounting part is covered on the top of the base body, and an opening in the middle of the pump head mounting part forms a mounting hole for mounting a centrifugal pump head.
2. An extracorporeal membrane lung oxygenation pump drive apparatus as recited in claim 1, wherein said pump drive apparatus further comprises: the fixing piece is used for installing the power driving piece on the upper part of the base body through a sealing piece, the fixing piece is used for separating the power driving piece from the magnetic piece, and the pump head installation piece is installed on the fixing piece.
3. The extracorporeal membrane oxygenation pump drive apparatus of claim 2, wherein the angle of installation of the magnet is greater than or equal to 15 degrees and less than or equal to 85 degrees.
4. The extracorporeal membrane oxygenation pump drive apparatus of claim 3, wherein a protrusion is formed in a middle portion of an upper side of the fixture, the protrusion having a first through hole formed therein and at least a second through hole disposed around the first through hole, the power driver being mounted to the fixture through the second through hole, a drive shaft of the power driver passing through the first through hole, the housing being mounted to the drive shaft.
5. The extracorporeal membrane oxygenation pump drive apparatus of claim 4, wherein the periphery of the mounting forms a heat sink fold.
6. The extracorporeal membrane oxygenation pump drive device of claim 1, wherein a control circuit board and a drive control board are disposed in the base, and the control circuit board is connected to the drive circuit board.
7. The extracorporeal membrane oxygenation pump drive apparatus of claim 1, wherein a display screen, at least one control button and at least one indicator light are disposed on the substrate, and the display screen, the control button and the indicator light are respectively connected to the control circuit board.
8. An extracorporeal membrane lung oxygenation pump drive apparatus as recited in claim 7, wherein said pump drive apparatus further comprises: the rear cover is covered at the bottom of the base body, the middle part of the rear cover protrudes inwards to form an embedded part, and the embedded part is inserted into the inner cavity of the base body.
9. The extracorporeal membrane oxygenation pump drive apparatus of claim 8, wherein a power supply external interface and a flow sensor interface are disposed on the rear cover, and the power supply external interface and the flow sensor interface are respectively connected to the control circuit board.
10. The extracorporeal membrane oxygenation pump drive apparatus of any one of claims 1-9, wherein the substrate is a cube or cuboid, and the substrate lumen is a cylindrical cavity.
Priority Applications (1)
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CN202011394773.4A CN112546423A (en) | 2020-12-02 | 2020-12-02 | Extracorporeal membrane oxygenation pump driving device |
Applications Claiming Priority (1)
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CN202011394773.4A CN112546423A (en) | 2020-12-02 | 2020-12-02 | Extracorporeal membrane oxygenation pump driving device |
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CN202011394773.4A Pending CN112546423A (en) | 2020-12-02 | 2020-12-02 | Extracorporeal membrane oxygenation pump driving device |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114306791A (en) * | 2021-12-23 | 2022-04-12 | 上海宏创医疗科技有限公司 | Control host for extracorporeal circulation equipment |
CN115887809A (en) * | 2023-01-29 | 2023-04-04 | 深圳汉诺医疗科技有限公司 | ECMO operating system |
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US4984972A (en) * | 1989-10-24 | 1991-01-15 | Minnesota Mining And Manufacturing Co. | Centrifugal blood pump |
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CN103599573A (en) * | 2013-10-15 | 2014-02-26 | 上海理工大学 | Magnetic driving device for medical centrifugal blood pump |
CN108815601A (en) * | 2018-10-15 | 2018-11-16 | 上海微创医疗器械(集团)有限公司 | Magnetic coupling centrifugal blood pump and blood pump pedestal |
CN210355495U (en) * | 2019-03-07 | 2020-04-21 | 江苏赛腾医疗科技有限公司 | Blood pump and cardiopulmonary bypass system |
CN111249551A (en) * | 2020-01-21 | 2020-06-09 | 深圳汉诺医疗科技有限公司 | Worm type pump head for artificial heart, artificial heart pump and ECMO equipment |
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2020
- 2020-12-02 CN CN202011394773.4A patent/CN112546423A/en active Pending
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US4984972A (en) * | 1989-10-24 | 1991-01-15 | Minnesota Mining And Manufacturing Co. | Centrifugal blood pump |
US20020031436A1 (en) * | 2000-09-11 | 2002-03-14 | Jms Co., Ltd. | Turbo blood pump |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114306791A (en) * | 2021-12-23 | 2022-04-12 | 上海宏创医疗科技有限公司 | Control host for extracorporeal circulation equipment |
CN115887809A (en) * | 2023-01-29 | 2023-04-04 | 深圳汉诺医疗科技有限公司 | ECMO operating system |
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