CN201710717U - Miniature screw rod type blood pump - Google Patents
Miniature screw rod type blood pump Download PDFInfo
- Publication number
- CN201710717U CN201710717U CN2010202285652U CN201020228565U CN201710717U CN 201710717 U CN201710717 U CN 201710717U CN 2010202285652 U CN2010202285652 U CN 2010202285652U CN 201020228565 U CN201020228565 U CN 201020228565U CN 201710717 U CN201710717 U CN 201710717U
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- screw rod
- stator
- blood pump
- screw
- miniature
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Abstract
The utility model discloses a miniature screw rod type blood pump which comprises a screw cylinder and a screw rod; the screw rod is fixed in the screw cylinder through a front support seat and a back support seat; a permanent magnet is arranged in the screw rod; a front guide vane is arranged at the front end of the screw rod; a plurality of guide vanes are arranged at the central part of the screw rod; a guide channel is formed among the guide vanes; a back guide vane is arranged at the tail part of the screw rod; the front guide vane is connected with the back guide vane through a shaft arranged in the screw rod; and a driving coil capable of driving the screw rod to rotate is arranged outside the screw cylinder. The utility model aims to overcome the defects in the prior art, and provides the miniature screw rod type blood pump, which has a simple structure and can effectively reduce intravascular coagulation and damage of the screw rod to blood cells.
Description
Technical field
This utility model relates to a kind of miniature screw blood pump.
Background technology
Heart disease becomes first killer of human health gradually, and the effective ways of treatment heart failure in late period are heart transplantations.But because heart transplant operation is subjected to the restriction of donor, clinically now artificial heart auxiliary treatment that adopt are waited for donor's heart more.
The present more centrifugal artificial heart of foreign study has been widely used in clinical, and the axial-flow type artificial heart is little owing to volume, and can implant also obtains extensive studies, and the trend that replaces centrifugal artificial heart is arranged.But because the volume of axial-flow pump is little, the rotating speed height has higher shear rate, and it is big to destroy religion for blood cell, and is serious even haemolysis, threat to life take place.In addition because the rotating ratio of axial-flow pump is higher, also there are a lot of deficiencies at aspects such as life-span of bearing, power consumptions.On haemolysis, blood coagulation performance, be still waiting to improve.
The utility model content
The purpose of this utility model is in order to overcome weak point of the prior art, to provide a kind of simple in structure, can effectively reduce the generation of intravascular coagulation, reducing the destructive miniature screw blood pump of screw rod for hemocyte.
In order to achieve the above object, this utility model adopts following scheme:
A kind of miniature screw blood pump, comprise barrel and screw rod, described screw rod is fixed in the barrel by the back and front supporting seat, in described screw rod, be provided with permanent magnet, on described screw front end, be provided with preceding stator, on described screw rod middle part, be provided with a plurality of stators, form flow-guiding channel between the described stator, on described screw rod tail, be provided with rear guide vane, stator and rear guide vane link together by one before described, described axle is arranged in the screw rod, is provided with the drive coil that can drive described screw rod rotation outside described barrel.
Aforesaid a kind of miniature screw blood pump can be measured the control pick off that the organism pressure value is adjusted screw speed thereby wherein be provided with outside described barrel.
Aforesaid a kind of miniature screw blood pump has angle between wherein said rear guide vane and the stator.
Aforesaid a kind of miniature screw blood pump, wherein said stator rotation direction is left-handed, the cross section of stator is streamlined.
Aforesaid a kind of miniature screw blood pump, wherein said stator rotation direction is dextrorotation, the cross section of stator is streamlined.
Aforesaid a kind of miniature screw blood pump, wherein said stator is straight stator, the cross section of stator is streamlined.
Aforesaid a kind of miniature screw blood pump, the gap of wherein said screw rod and preceding supporting seat is the 0.1-2 millimeter, described screw rod is the 0.1-1 millimeter with the gap of back supporting seat.
Aforesaid a kind of miniature screw blood pump, wherein said screw rod is the reducing Variable pitch screw.
Compared with prior art, the beneficial effects of the utility model:
This utility model reduces the dead angle of blood in runner by smooth no step barrel, reduces the generation of intravascular coagulation.Produce stable blood flow and blood pressure by special reducing Variable pitch screw, reduce the destruction of screw rod, can also manually or automatically adjust the rotating speed of screw rod by the control drive circuit simultaneously, keep blood pressure in the normal range of organism for hemocyte.
Description of drawings
Fig. 1 is a generalized section of the present utility model.
The specific embodiment
Below in conjunction with the description of drawings and the specific embodiment this utility model is described further:
A kind of miniature screw blood pump as shown in Figure 1 comprises smooth no step barrel 1 and reducing Variable pitch screw 2, and described screw rod 2 is fixed in the barrel 1 by back and front supporting seat 3,4, is provided with permanent magnet 5 in described screw rod 2, shown in frame of broken lines among the figure; Stator 6 before on described screw rod 2 front ends, being provided with, on described screw rod 2 middle parts, be provided with a plurality of stators 7, form flow-guiding channel 8 between the described stator 7, on described screw rod 2 afterbodys, be provided with rear guide vane 9, stator 6 and rear guide vane 9 link together by one 10 before described, described axle 10 is arranged in the screw rod 2, shown in elongated frame of broken lines among the figure; Outside described barrel 1, be provided with the drive coil 11 that can drive described screw rod 2 rotations.Described drive coil 11 is connected with the control drive circuit, the control drive circuit comprises in this utility model: drive circuit produces the controlled alternating current of three-phase, supply with stator drive coil 11 and produce rotating excitation field, magnet 5 effects in rotating excitation field and the screw rod 2 drive screw rod 2 rotations.
Thereby outside described barrel 1, be provided with in this utility model and can measure organism pressure value automatic or manual and adjust screw rod 2 rotating speeds and make blood pressure reach the control pick off 12 of normal value.Effectively guarantee to reduce destruction to hemocyte.
Have angle between rear guide vane 9 described in this utility model and the stator 7.Effectively reduce the flow velocity of blood in the pump housing.Described stator 7 rotation directions can be left-handed, dextrorotation, and perhaps straight stator, the cross section of stator 7 is streamlined.Described screw rod 2 is the 0.1-2 millimeter with the gap of preceding supporting seat 3, and described screw rod 2 is the 0.1-1 millimeter with the gap of back supporting seat 4.
Claims (8)
1. miniature screw blood pump, it is characterized in that: comprise barrel (1) and screw rod (2), before described screw rod (2) passes through, back supporting seat (3,4) be fixed in the barrel (1), in described screw rod (2), be provided with permanent magnet (5), on described screw rod (2) front end, be provided with preceding stator (6), on described screw rod (2) middle part, be provided with a plurality of stators (7), form flow-guiding channel (8) between the described stator (7), on described screw rod (2) afterbody, be provided with rear guide vane (9), stator (6) and rear guide vane (9) link together by one (10) before described, described axle (10) is arranged in the screw rod (2), is provided with the drive coil (11) that can drive described screw rod (2) rotation outside described barrel (1).
2. a kind of miniature screw blood pump according to claim 1, it is characterized in that at described barrel (1) thus outside be provided with and can measure the control pick off (12) that the organism pressure value is adjusted screw rod (2) rotating speed.
3. a kind of miniature screw blood pump according to claim 1 is characterized in that having angle between described rear guide vane (9) and the stator (7).
4. a kind of miniature screw blood pump according to claim 1 is characterized in that described stator (7) rotation direction is left-handed, and the cross section of stator (7) is streamlined.
5. a kind of miniature screw blood pump according to claim 1 is characterized in that described stator (7) rotation direction is dextrorotation, and the cross section of stator (7) is streamlined.
6. a kind of miniature screw blood pump according to claim 1 is characterized in that described stator (7) is straight stator, and the cross section of stator (7) is streamlined.
7. a kind of miniature screw blood pump according to claim 1 is characterized in that the described screw rod (2) and the gap of preceding supporting seat (3) are the 0.1-2 millimeter, and described screw rod (2) is the 0.1-1 millimeter with the gap of back supporting seat (4).
8. a kind of miniature screw blood pump according to claim 1 is characterized in that described screw rod (2) is the reducing Variable pitch screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202285652U CN201710717U (en) | 2010-06-08 | 2010-06-08 | Miniature screw rod type blood pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202285652U CN201710717U (en) | 2010-06-08 | 2010-06-08 | Miniature screw rod type blood pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201710717U true CN201710717U (en) | 2011-01-19 |
Family
ID=43456709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202285652U Expired - Fee Related CN201710717U (en) | 2010-06-08 | 2010-06-08 | Miniature screw rod type blood pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201710717U (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977464A (en) * | 2014-06-06 | 2014-08-13 | 清华大学 | Implantable miniature axial blood pump with gradually-changing flow zone at outlet |
| CN106075623A (en) * | 2016-08-12 | 2016-11-09 | 常俊 | A kind of physiology turn rear guide vane artificial heart |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| CN112870547A (en) * | 2021-02-07 | 2021-06-01 | 华中科技大学同济医学院附属协和医院 | Serial axial flow pump auxiliary device for treating Fontan postoperative circulation failure and using method thereof |
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11368081B2 (en) | 2018-01-24 | 2022-06-21 | Kardion Gmbh | Magnetic coupling element with a magnetic bearing function |
| 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 |
| US11754075B2 (en) | 2018-07-10 | 2023-09-12 | Kardion Gmbh | Impeller for an implantable, vascular support system |
| US11944805B2 (en) | 2020-01-31 | 2024-04-02 | Kardion Gmbh | Pump for delivering a fluid and method of manufacturing a pump |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
| US12005248B2 (en) | 2018-05-16 | 2024-06-11 | Kardion Gmbh | Rotor bearing system |
| US12064615B2 (en) | 2018-05-30 | 2024-08-20 | Kardion Gmbh | Axial-flow pump for a ventricular assist device and method for producing an axial-flow pump for a ventricular assist device |
| US12076549B2 (en) | 2018-07-20 | 2024-09-03 | Kardion Gmbh | Feed line for a pump unit of a cardiac assistance system, cardiac assistance system and method for producing a feed line for a pump unit of a cardiac assistance system |
| US12107474B2 (en) | 2018-05-16 | 2024-10-01 | Kardion Gmbh | End-face rotating joint for transmitting torques |
| US12102815B2 (en) | 2019-09-25 | 2024-10-01 | Shifamed Holdings, Llc | Catheter blood pumps and collapsible pump housings |
| US12121713B2 (en) | 2019-09-25 | 2024-10-22 | Shifamed Holdings, Llc | Catheter blood pumps and collapsible blood conduits |
-
2010
- 2010-06-08 CN CN2010202285652U patent/CN201710717U/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977464A (en) * | 2014-06-06 | 2014-08-13 | 清华大学 | Implantable miniature axial blood pump with gradually-changing flow zone at outlet |
| CN106075623A (en) * | 2016-08-12 | 2016-11-09 | 常俊 | A kind of physiology turn rear guide vane artificial heart |
| CN106075623B (en) * | 2016-08-12 | 2018-06-22 | 常俊 | A kind of physiology turn rear guide vane artificial heart |
| 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 |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11804767B2 (en) | 2018-01-24 | 2023-10-31 | Kardion Gmbh | Magnetic coupling element with a magnetic bearing function |
| US11368081B2 (en) | 2018-01-24 | 2022-06-21 | Kardion Gmbh | Magnetic coupling element with a magnetic bearing function |
| US11229784B2 (en) | 2018-02-01 | 2022-01-25 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| 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 |
| US12005248B2 (en) | 2018-05-16 | 2024-06-11 | Kardion Gmbh | Rotor bearing system |
| US12107474B2 (en) | 2018-05-16 | 2024-10-01 | Kardion Gmbh | End-face rotating joint for transmitting torques |
| US12064615B2 (en) | 2018-05-30 | 2024-08-20 | Kardion Gmbh | Axial-flow pump for a ventricular assist device and method for producing an axial-flow pump for a ventricular assist device |
| US11754075B2 (en) | 2018-07-10 | 2023-09-12 | Kardion Gmbh | Impeller for an implantable, vascular support system |
| US12076549B2 (en) | 2018-07-20 | 2024-09-03 | Kardion Gmbh | Feed line for a pump unit of a cardiac assistance system, cardiac assistance system and method for producing a feed line for a pump unit of a cardiac assistance system |
| 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 |
| US12102815B2 (en) | 2019-09-25 | 2024-10-01 | Shifamed Holdings, Llc | Catheter blood pumps and collapsible pump housings |
| US12121713B2 (en) | 2019-09-25 | 2024-10-22 | Shifamed Holdings, Llc | Catheter blood pumps and collapsible blood conduits |
| US11944805B2 (en) | 2020-01-31 | 2024-04-02 | Kardion Gmbh | Pump for delivering a fluid and method of manufacturing a pump |
| CN112870547A (en) * | 2021-02-07 | 2021-06-01 | 华中科技大学同济医学院附属协和医院 | Serial axial flow pump auxiliary device for treating Fontan postoperative circulation failure and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20120523 Granted publication date: 20110119 |
|
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20130523 Granted publication date: 20110119 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20130731 Granted publication date: 20110119 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20140131 Granted publication date: 20110119 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20120608 |