CN1559361A - 人造心脏瓣膜泵 - Google Patents
人造心脏瓣膜泵 Download PDFInfo
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- CN1559361A CN1559361A CNA2004100141646A CN200410014164A CN1559361A CN 1559361 A CN1559361 A CN 1559361A CN A2004100141646 A CNA2004100141646 A CN A2004100141646A CN 200410014164 A CN200410014164 A CN 200410014164A CN 1559361 A CN1559361 A CN 1559361A
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- 210000003709 heart valve Anatomy 0.000 title claims abstract description 17
- 230000005291 magnetic effect Effects 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 239000003302 ferromagnetic material Substances 0.000 claims abstract description 4
- 239000008280 blood Substances 0.000 abstract description 13
- 210000004369 blood Anatomy 0.000 abstract description 13
- 230000017531 blood circulation Effects 0.000 abstract description 5
- 230000009977 dual effect Effects 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 3
- 230000036772 blood pressure Effects 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000003205 diastolic effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
本发明涉及医疗器械领域主要用于辅助衰竭的心脏，以维持正常的血液循环。装置采用心脏瓣膜相同的形状和尺寸，由转子及定子组成。定子包括线卷及铁芯，定子在出口位置设置有导叶；转子由磁钢及叶轮构成，叶轮由铁磁性材料加工而成，它同时又起到磁回路的作用。当线卷通电后转子旋转，带动血液旋转并轴向流动，经导叶消除旋转分量后达到单向阀及泵血的双重功能。由于装置形状、体积与瓣膜相同，安装在自然心脏瓣膜位置，因此它不占有额外的解剖空间，对自然循环系统不产生生理干扰，与受体具有良好的相容性。
Description
所属技术领域
本发明涉及医疗器械领域，特指一种人造心脏瓣膜泵，主要用于辅助衰竭的心脏，以维持正常的血液循环。
背景技术
目前临床上应用的人造心脏瓣膜及人造心脏泵，均具有各自的缺点和优点。人造瓣膜能替代失效的自然心脏瓣膜，阻止血液倒流，保持血液单向、通畅流动，并且具有较长的存活期(数十年)；但是瓣膜内支承瓣片的支架，象河流中的桥墩一样，引起血液产生滞止点和旋涡，容易引起血栓形成；人造心泵能辅助衰竭的心肌，完成泵血功能，但一般都需占用额外的解剖空间，并对自然的血液循环系统造成干扰。
发明内容
本发明的目的是提供一种人造心脏瓣膜泵，其是一种新概念，将现有的人工心脏瓣及人工心泵合二而一；具有双重功能，既能保持血液单向流动，又能完成泵血功能，其采用心脏瓣膜相同的形状和尺寸，不需要额外的解剖空间。
本发明的目的是这样实现的：
装置采用心脏瓣膜相同的形状和尺寸，由转子及定子组成。定子包括线卷及铁蕊，定子在出口位置设置有导叶；转子由磁钢及叶轮构成，叶轮由铁磁性材料加工并镀层而成，它同时又起到磁回路的作用。
当线卷通电后转子旋转，带动血液旋转并轴向流动，导叶的作用是消除血液流动的旋转分量，减小血液的破坏。
其优点在于：
(1)将现有的人工心脏瓣及人工心泵合二而一，具有双重功能，既能保持血液单向流动，阻止血液倒流，又能增加血液的压力，辅助衰竭的心室，维持正常的血压；
(2)具有心脏瓣膜相同的形状和尺寸，被安放在心脏瓣膜相同的位置，不需要额外的解剖空间。
(3)泵内不存在轴承，转子靠液膜减小与定子之间的摩擦；转子外表面选用耐磨材料，延长使用增加时间。
附图说明
图1为本发明的结构示意图
1.定子线卷及铁蕊；2.转子磁钢；3.叶轮；4.出口导叶。
具体实施方式
如图1所示，装置采用心脏瓣膜相同的形状和尺寸，由转子及定子组成。定子包括线卷及铁蕊1，定子在出口位置设置有导叶4；转子由磁钢2及叶轮3构成，叶轮3由铁磁性材料加工而成，它同时又起到磁回路的作用。当线卷通电后转子旋转，带动血液旋转并轴向流动，如图箭头所示。导叶4的作用是消除血液流动的旋转分量，减小血液的破坏。
本发明实施例整个装置重40克，其中包括转子11克；最大外径24.7毫米，该处长度12.7毫米，在自然心室舒张期，维持主动脉压80毫米汞柱时转速需1500转/分；在自然心室收缩期，转子在同样的转速下能产生10升/分的流量，血压达120毫米汞柱，其中瓣膜泵增加血压40毫米汞柱，即心室减负荷40毫米汞柱。本发明在镇江市第一人民医院进行动物试验，证实用它来替代心脏瓣膜并辅助衰竭的心室，是可行的。
Claims (1)
1.人造心脏瓣膜泵，其特征在于装置采用心脏瓣膜相同的形状和尺寸，由转子及定子组成，定子包括线卷及铁蕊(1)，定子在出口位置设置有导叶(4)；转子由磁钢(2)及叶轮(3)构成，叶轮(3)由铁磁性材料加工并镀层而成。
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100141646A CN100536801C (zh) | 2004-02-26 | 2004-02-26 | 人造心脏瓣膜泵 |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100141646A CN100536801C (zh) | 2004-02-26 | 2004-02-26 | 人造心脏瓣膜泵 |
Publications (2)
| Publication Number | Publication Date |
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| CN1559361A true CN1559361A (zh) | 2005-01-05 |
| CN100536801C CN100536801C (zh) | 2009-09-09 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| 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 |
| 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 |
| US12161857B2 (en) | 2018-07-31 | 2024-12-10 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use |
| US12220570B2 (en) | 2018-10-05 | 2025-02-11 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use |
| US12409310B2 (en) | 2019-12-11 | 2025-09-09 | Shifamed Holdings, Llc | Descending aorta and vena cava blood pumps |
| US12465748B2 (en) | 2019-08-07 | 2025-11-11 | Supira Medical, Inc. | Catheter blood pumps and collapsible pump housings |
-
2004
- 2004-02-26 CN CNB2004100141646A patent/CN100536801C/zh not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US11229784B2 (en) | 2018-02-01 | 2022-01-25 | 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 |
| US12076545B2 (en) | 2018-02-01 | 2024-09-03 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US12161857B2 (en) | 2018-07-31 | 2024-12-10 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use |
| US12220570B2 (en) | 2018-10-05 | 2025-02-11 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use |
| 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 |
| US12465748B2 (en) | 2019-08-07 | 2025-11-11 | Supira Medical, Inc. | Catheter blood pumps and collapsible pump housings |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| US12121713B2 (en) | 2019-09-25 | 2024-10-22 | Shifamed Holdings, Llc | Catheter blood pumps and collapsible blood conduits |
| US12102815B2 (en) | 2019-09-25 | 2024-10-01 | Shifamed Holdings, Llc | Catheter blood pumps and collapsible pump housings |
| US12409310B2 (en) | 2019-12-11 | 2025-09-09 | Shifamed Holdings, Llc | Descending aorta and vena cava blood pumps |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100536801C (zh) | 2009-09-09 |
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