WO2024138296A1 - 柔性神经探针 - Google Patents
柔性神经探针 Download PDFInfo
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- WO2024138296A1 WO2024138296A1 PCT/CN2022/141832 CN2022141832W WO2024138296A1 WO 2024138296 A1 WO2024138296 A1 WO 2024138296A1 CN 2022141832 W CN2022141832 W CN 2022141832W WO 2024138296 A1 WO2024138296 A1 WO 2024138296A1
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- flexible
- electrode
- pressure control
- probe body
- control layer
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
- A61B5/262—Needle electrodes
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- FIG2 is a cross-sectional view of a flexible neural probe provided in an embodiment of the present application.
- the present application discloses a flexible neural probe 100 , which can be applied in a living body (such as an experimental animal or a patient) to monitor neuronal electrical signals or chemical signals in the living body.
- the flexible neural probe 100 Compared with the related art that requires the neural probe to be removed from the body and then implanted into the body to a new monitoring position, the flexible neural probe 100 provided in the present application does not need to be removed and then implanted into the body, and can be directly moved to a new monitoring position in the body. This not only avoids the pain caused to the body by removing and then implanting the neural probe, improves the use experience of the body, but also avoids the damage to the neural probe caused by removing and then implanting the neural probe, which helps to extend the service life of the flexible neural probe 100.
- the length a of the flexible probe body is 1 mm-100 mm.
- the width b of the flexible probe body is 200 um-2000 um.
- the tip of the flexible probe body includes two waists c of equal length and angled, and the ratio of the length of the waist c to the width of the flexible probe body is 0.6-1.5. If the length of the flexible probe body is too long, its structural stress will cause the flexible neural probe 100 itself to be unable to be implanted vertically, and if the width is too wide, the implantation wound will be too large.
- the flexible neural probe 100 has the following advantages:
- the flexible neural probe 100 can dynamically adjust the tip implantation flexion force through air pressure, thereby reducing the damage to the tissue caused by the implantation and avoiding the signal noise caused by the production of astrocytes; 2. After implantation, the flexible neural probe 100 can adjust the test position of the probe tip electrode 700 by adjusting the air pressure to achieve the effect of one-time implantation and multi-site testing; 3. The flexible neural probe 100 can adjust the shape and number of the air chamber 400 of the air pressure control layer 200 and combine the simulation data to meet different multi-site testing requirements; 4. The flexible neural probe 100 has almost no restrictions on manufacturing materials. Any flexible polymer material can be used as the structural material of the probe, and the manufacturing process is simple and easy to operate, with the potential for large-scale mass production.
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- the flexible neural probe 100 provided in this embodiment includes an electrode integration layer 300 and an air pressure control layer 200.
- the electrode integration layer 300 is made of PI
- the air pressure control layer 200 is made of PDMS.
- the structural thickness of the electrode integration layer 300 and the air pressure control layer 200 are both 100 um.
- the length of the flexible neural probe 100 is 10 mm, the width is 1 mm, and the thickness of the air chamber 400 in all probes is 20 um.
- the flexible nerve probe 100 is provided with only one air chamber 400 at the tip.
- the cross-section of the air chamber 400 is elliptical, and the short axis of the air chamber 400 is 0.5 mm and the long axis is 0.8 mm.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- the flexible neural probe 100 provided in this embodiment includes an electrode integration layer 300 and an air pressure control layer 200.
- the electrode integration layer 300 is made of PI
- the air pressure control layer 200 is made of PDMS.
- the structural thickness of the electrode integration layer 300 and the air pressure control layer 200 are both 100 um.
- the length of the flexible neural probe 100 is 10 mm, the width is 1 mm, and the thickness of the air chamber 400 in all probes is 20 um.
- the flexible neural probe 100 provided in this embodiment includes an electrode integrated layer 300 and an air pressure control layer 200.
- the electrode integrated layer 300 is made of PI
- the air pressure control layer 200 is made of PDMS.
- the structural thickness of the electrode integrated layer 300 and the air pressure control layer 200 are both 100 um.
- the length of the flexible neural probe 100 is 10 mm, the width is 1 mm, and the thickness of the air chamber 400 in all probes is 20 um.
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- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
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- Animal Behavior & Ethology (AREA)
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- Electrotherapy Devices (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
Claims (17)
- 一种柔性神经探针,包括:柔性探针本体,所述柔性探针本体包括层叠设置的气压控制层(200)和电极集成层(300),所述气压控制层(200)内形成有至少一个气室(400),所述柔性探针本体具有尖端;监测电极机构,所述监测电极机构设置在所述电极集成层(300)上,且所述监测电极机构包括至少一个电极(700),所述电极(700)位于所述柔性探针本体的尖端;其中,所述气室(400)内的气压设置为可调整,以使所述柔性探针本体发生形变以及改变所述电极(700)的监测位置。
- 根据权利要求1所述的柔性神经探针,其中,气室(400)的数量为多个,多个气室(400)在所述柔性探针本体的长度方向上间隔设置。
- 根据权利要求2所述的柔性神经探针,其中,所述气压控制层(200)内还形成有气体注入腔(500)和至少一个微流道(600),所述气体注入腔(500)通过所述微流道(600)与所述气室(400)连通,通过所述气体注入腔(500)和所述微流道(600)设置为向所有的气室(400)内注入气体,所述气室(400)内的气体能够通过所述微流道(600)和所述气体注入腔(500)排出。
- 根据权利要求1所述的柔性神经探针,其中,所述监测电极机构还包括封装结构(900)和引线(800),所述封装结构(900)通过所述引线(800)与所述电极(700)电连接。
- 根据权利要求4所述的柔性神经探针,其中,电极(700)的数量为多个,多个电极(700)均设置在所述柔性探针本体的尖端,且每个电极(700)通过一根引线(800)与所述封装结构(900)连接。
- 根据权利要求1所述的柔性神经探针,满足以下至少之一:所述柔性探针本体的长度a为1mm-100mm;所述柔性探针本体的宽度b为200um-2000um;所述柔性探针本体的尖端包括两个长度相等且呈夹角的腰边c,所述腰边c的长度与所述柔性探针本体的宽度b的比值为0.6-1.5。
- 根据权利要求1所述的柔性神经探针,其中,所述气压控制层(200)的厚度大于所述电极集成层(300)的厚度。
- 根据权利要求7所述的柔性神经探针,满足以下至少之一:所述气压控制层(200)的厚度为40um-200um;所述电极集成层(300)的厚度为10um-200um。
- 根据权利要求1所述的柔性神经探针,其中,所述气室(400)的横截面形状为多边形。
- 根据权利要求1所述的柔性神经探针,其中,所述气室(400)的横截面形状为椭圆形。
- 根据权利要求9所述的柔性神经探针,其中,所述气室(400)包括长轴和短轴,所述长轴平行于所述柔性探针本体的宽度方向,所述短轴平行于所述柔性探针本体的长度方向;所述柔性探针本体的宽度与所述长轴的长度的差值大于或者等于100um;所述短轴的长度小于所述柔性探针本体的长度,且所述短轴的长度与所述柔性探针本体的宽度的比值小于或者等于3;所述气室(400)的厚度小于或者等于所述气压控制层(200)的厚度的一半。
- 根据权利要求11所述的柔性神经探针,满足以下至少之一:所述长轴的长度为100um-1900um;所述短轴的长度为20um-5000um;所述气室(400)的厚度为20um-100um。
- 根据权利要求11所述的柔性神经探针,其中,气室(400)的数量为多个,相邻两个气室(400)的几何中心的间距与所述短轴的长度的比值大于或者等于1.5。
- 根据权利要求3所述的柔性神经探针,满足以下至少之一:所述微流道(600)的宽度为10um-40um;所述微流道(600)的高度与所述气体注入腔(500)的高度相等。
- 根据权利要求1-14中任一项所述的柔性神经探针,其中,所述气压控制层(200)为采用柔性高分子材料制成的片状结构,所述柔性 高分子材料为聚二甲基硅氧烷、聚酰亚胺、聚碳酸酯和聚对二甲苯中的一种。
- 根据权利要求1-14中任一项所述的柔性神经探针,其中,所述电极集成层(300)为采用柔性高分子材料制成的片状结构,所述柔性高分子材料为聚酰亚胺、聚对二甲苯、聚碳酸酯和聚甲基丙烯酸甲酯中的一种。
- 根据权利要求1-14中任一项所述的柔性神经探针,满足以下至少之一:所述气压控制层(200)和所述电极集成层(300)粘接;所述气压控制层(200)和所述电极集成层(300)通过热压键合的方式连接;所述气压控制层(200)和所述电极集成层(300)通过超声波键合的方式连接;所述气压控制层(200)和所述电极集成层(300)通过激光键合的方式连接。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2022/141832 WO2024138296A1 (zh) | 2022-12-26 | 2022-12-26 | 柔性神经探针 |
| CN202280099797.8A CN119866199B (zh) | 2022-12-26 | 2022-12-26 | 柔性神经探针 |
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| PCT/CN2022/141832 WO2024138296A1 (zh) | 2022-12-26 | 2022-12-26 | 柔性神经探针 |
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| WO2024138296A1 true WO2024138296A1 (zh) | 2024-07-04 |
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| PCT/CN2022/141832 Ceased WO2024138296A1 (zh) | 2022-12-26 | 2022-12-26 | 柔性神经探针 |
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| WO (1) | WO2024138296A1 (zh) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110144471A1 (en) * | 2009-12-16 | 2011-06-16 | Hui-Lin Hsu | Flexible probe structure and method for fabricating the same |
| CN111053535A (zh) * | 2019-12-18 | 2020-04-24 | 上海交通大学 | 用于生物植入的柔性可拉伸神经探针以及其制备方法 |
| WO2020092469A2 (en) * | 2018-10-30 | 2020-05-07 | The Regents Of The University Of California | Multifunctional neural probes with tunable stiffness and method of use |
| US20200281531A1 (en) * | 2019-03-07 | 2020-09-10 | City University Of Hong Kong | Electromedical apparatus, a method for manufacturing the electromedical apparatus and a method for deploying the electromedical apparatus |
| CN111657937A (zh) * | 2020-06-12 | 2020-09-15 | 西北工业大学 | 一种基于自膨胀水凝胶的三维柔性神经微电极及制备方法 |
| CN112869747A (zh) * | 2019-11-29 | 2021-06-01 | 清华大学 | 微电极及其制作和使用方法、塞类装置和微电极系统 |
| CN114224346A (zh) * | 2021-12-16 | 2022-03-25 | 西北工业大学 | 一种基于混合硅胶的软性神经探针及其制备方法 |
| CN114795224A (zh) * | 2022-04-19 | 2022-07-29 | 杭州电子科技大学 | 一种刚柔结合神经探针及其制备方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101884530A (zh) * | 2010-07-14 | 2010-11-17 | 中国科学院半导体研究所 | 用于记录神经活动电信号的柔性探针电极及其植入工具 |
| WO2019112750A2 (en) * | 2017-11-09 | 2019-06-13 | William Marsh Rice University | Apparatus and methods for fluidic microactuation of electrodes |
| CN114947867B (zh) * | 2022-05-18 | 2026-03-24 | 中山大学 | 一种大规模的磁控柔性脑机接口及其制备方法 |
-
2022
- 2022-12-26 WO PCT/CN2022/141832 patent/WO2024138296A1/zh not_active Ceased
- 2022-12-26 CN CN202280099797.8A patent/CN119866199B/zh active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110144471A1 (en) * | 2009-12-16 | 2011-06-16 | Hui-Lin Hsu | Flexible probe structure and method for fabricating the same |
| WO2020092469A2 (en) * | 2018-10-30 | 2020-05-07 | The Regents Of The University Of California | Multifunctional neural probes with tunable stiffness and method of use |
| US20200281531A1 (en) * | 2019-03-07 | 2020-09-10 | City University Of Hong Kong | Electromedical apparatus, a method for manufacturing the electromedical apparatus and a method for deploying the electromedical apparatus |
| CN112869747A (zh) * | 2019-11-29 | 2021-06-01 | 清华大学 | 微电极及其制作和使用方法、塞类装置和微电极系统 |
| CN111053535A (zh) * | 2019-12-18 | 2020-04-24 | 上海交通大学 | 用于生物植入的柔性可拉伸神经探针以及其制备方法 |
| CN111657937A (zh) * | 2020-06-12 | 2020-09-15 | 西北工业大学 | 一种基于自膨胀水凝胶的三维柔性神经微电极及制备方法 |
| CN114224346A (zh) * | 2021-12-16 | 2022-03-25 | 西北工业大学 | 一种基于混合硅胶的软性神经探针及其制备方法 |
| CN114795224A (zh) * | 2022-04-19 | 2022-07-29 | 杭州电子科技大学 | 一种刚柔结合神经探针及其制备方法 |
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| Publication number | Publication date |
|---|---|
| CN119866199B (zh) | 2026-02-13 |
| CN119866199A (zh) | 2025-04-22 |
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