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公开(公告)号：US20230061466A1
公开(公告)日：2023-03-02
申请号：US17948580
申请日：2022-09-20
Applicant: Greatbatch Ltd.
Inventor： Anthony C. Perez , Christina Scheuer , Barry C. Muffoletto , Jason T. Hahl
Abstract: A wet tantalum electrolytic capacitor containing a cathode, fluidic working electrolyte, and anode formed from an anodically oxidized sintered porous tantalum pellet is described. The pellet is formed from a pressed tantalum powder. The tantalum powder is formed by reacting a tantalum oxide compound, for example, tantalum pentoxide, with a reducing agent that contains a metal having an oxidation state of 2 or more, for example, magnesium. The resulting tantalum powder is nodular or angular and has a specific charge that ranges from about 9,000 μF*V/g to about 11,000 μF*V/g. Using this powder, wet tantalum electrolytic capacitors have breakdown voltages that ranges from about 340 volts to about 450 volts. This makes the electrolytic capacitors ideal for use in an implantable medical device.
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公开(公告)号：US20170148576A1
公开(公告)日：2017-05-25
申请号：US15356727
申请日：2016-11-21
Applicant: Greatbatch Ltd.
Inventor： Jason T. Hahl , Barry C. Muffoletto , Todd C. Sutay , Glenn A. Dumais , Wendy J. Baumler
CPC classification number: H01G9/042 , A61N1/375 , A61N1/378 , A61N1/3968 , H01G9/0029 , H01G9/008 , H01G9/02 , H01G9/0425 , H01G9/052 , H01G9/06 , H01G9/10 , H01G9/12 , H01G9/14 , H01G2009/05
Abstract: A capacitor having at least two side-by-side anodes with a cathode current collector disposed between the anodes and housed inside a casing is described. Cathode active material is supported on the opposed major faces of the current collector and the current collector/cathode active material subassembly is housed in a first separator envelope. The first separator envelope is positioned between the side-by-side anodes and this electrode assembly is then contained in a second separator envelope. The two anodes can be connected in parallel inside or outside casing, or they can be unconnected to each other. There is also cathode active material supported on inner surfaces of the casing in a face-to-face alignment with an adjacent one of the anodes. That way, the second separator envelope also prevents direct physical contact between the anode pellets and the cathode active material supported on the casing sidewalls.
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公开(公告)号：US09633796B2
公开(公告)日：2017-04-25
申请号：US15095196
申请日：2016-04-11
Applicant: Greatbatch Ltd.
Inventor： Yanming Liu , Barry C. Muffoletto , Jason T. Hahl
IPC: H01G4/232 , H01G9/052 , H01G9/145 , H01G9/10 , H01G9/02 , B22F3/00 , B22F3/11 , B22F1/00 , B22F3/24 , H01G9/00 , B22F5/00
CPC classification number: H01G9/0525 , B22F1/0096 , B22F3/002 , B22F3/11 , B22F3/24 , B22F5/00 , B22F2998/10 , B22F2999/00 , H01G9/0029 , H01G9/0032 , H01G9/02 , H01G9/052 , H01G9/10 , H01G9/145 , B22F9/04 , B22F3/02 , B22F3/10 , B22F2003/242 , B22F2201/11 , B22F1/0014 , B22F1/004 , B22F3/1109
Abstract: Tantalum powders produced using a tantalum fiber precursor are described. The tantalum fiber precursor is chopped or cut into short lengths having a uniform fiber thickness and favorable aspect ratio. The chopped fibers are formed into a primary powder having a controlled size and shape, narrow/tight particle size distribution, and low impurity level. The primary powder is then agglomerated into an agglomerated powder displaying suitable flowability and pressability such that pellets with good structural integrity and uniform pellet porosity are manufacturable. The pellet is sintered and anodized to a desired formation voltage. The thusly created capacitor anode has a dual morphology or dual porosity provided by a primary porosity of the individual tantalum fibers making up the primary powder and a larger secondary porosity formed between the primary powders agglomerated into the agglomerated powder.
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公开(公告)号：USRE48439E1
公开(公告)日：2021-02-16
申请号：US16381423
申请日：2019-04-11
Applicant: Greatbatch Ltd.
Inventor： Yanming Liu , Barry C. Muffoletto , Jason T. Hahl
Abstract: Tantalum powders produced using a tantalum fiber precursor are described. The tantalum fiber precursor is chopped or cut into short lengths having a uniform fiber thickness and favorable aspect ratio. The chopped fibers are formed into a primary powder having a controlled size and shape, narrow/tight particle size distribution, and low impurity level. The primary powder is then agglomerated into an agglomerated powder displaying suitable flowability and pressability such that pellets with good structural integrity and uniform pellet porosity are manufacturable. The pellet is sintered and anodized to a desired formation voltage. The thusly created capacitor anode has a dual morphology or dual porosity provided by a primary porosity of the individual tantalum fibers making up the primary powder and a larger secondary porosity formed between the primary powders agglomerated into the agglomerated powder.
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公开(公告)号：USRE47435E1
公开(公告)日：2019-06-11
申请号：US14645539
申请日：2015-03-12
Applicant: Greatbatch Ltd.
Inventor： Ashish Shah , Christina Scheuer , Lauren (Miller) Matyjas , Barry C. Muffoletto
IPC: H01G9/022
Abstract: An electrolyte for activating an electrolytic or electrochemical capacitor is described. The electrolyte preferably includes a mixed solvent of water and ethylene glycol having an ammonium salt dissolved therein. An acid such as phosphoric or acetic acid is used to provide a pH of about 3 to 6. The electrolyte is particularly useful for activating a ruthenium oxide/tantalum capacitor having an anode breakdown voltage in the range of 175 to 300 volts.
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Patent Agency Ranking
公开(公告)号：US09312075B1
公开(公告)日：2016-04-12
申请号：US14479689
申请日：2014-09-08
Applicant: Greatbatch Ltd.
Inventor： Yanming Liu , Barry C. Muffoletto , Jason T. Hahl
CPC classification number: H01G9/0525 , B22F1/0096 , B22F3/24 , B22F5/00 , B22F2998/10 , B22F2999/00 , H01G9/0032 , H01G9/02 , H01G9/052 , H01G9/145 , B22F9/04 , B22F3/02 , B22F3/10 , B22F2003/242 , B22F2201/11 , B22F1/0014
Abstract: Tantalum powders produced using a tantalum fiber precursor are described. The tantalum fiber precursor is chopped or cut into short lengths having a uniform fiber thickness and favorable aspect ratio. The chopped fibers are formed into a primary powder having a controlled size and shape, narrow/tight particle size distribution, and low impurity level. The primary powder is then agglomerated into an agglomerated powder displaying suitable flowability and pressability such that pellets with good structural integrity and unifrom pellet porosity are manufacturable. The pellet is sintered and anodized to a desired formation voltage. The thusly created capacitor anode has a dual morphology or dual porosity provided by a primary porosity of the individual tantalum fibers making up the primary powder and a larger secondary porosity formed between the primary powders agglomerated into the agglomerated powder.
Abstract translation: 描述了使用钽纤维前体制备的钽粉末。 将钽纤维前体切碎或切割成具有均匀的纤维厚度和有利的纵横比的短长度。 短切纤维形成具有受控尺寸和形状，窄/紧密粒度分布和低杂质水平的初级粉末。 然后将初级粉末凝聚成显示合适的流动性和压制性的附聚粉末，使得具有良好结构完整性和均匀颗粒孔隙度的颗粒是可制造的。 将颗粒烧结并阳极氧化至所需的地层电压。 由此产生的电容器阳极具有由构成初级粉末的各个钽纤维的初级孔隙率提供的双重形态或双重孔隙，并且在附聚到聚集的粉末中的初级粉末之间形成较大的次生孔隙。
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公开(公告)号：US12119186B2
公开(公告)日：2024-10-15
申请号：US17948580
申请日：2022-09-20
Applicant: Greatbatch Ltd.
Inventor： Anthony C. Perez , Christina Scheuer , Barry C. Muffoletto , Jason T. Hahl
Abstract: A wet tantalum electrolytic capacitor containing a cathode, fluidic working electrolyte, and anode formed from an anodically oxidized sintered porous tantalum pellet is described. The pellet is formed from a pressed tantalum powder. The tantalum powder is formed by reacting a tantalum oxide compound, for example, tantalum pentoxide, with a reducing agent that contains a metal having an oxidation state of 2 or more, for example, magnesium. The resulting tantalum powder is nodular or angular and has a specific charge that ranges from about 9,000 μF*V/g to about 11,000 μF*V/g. Using this powder, wet tantalum electrolytic capacitors have breakdown voltages that ranges from about 340 volts to about 450 volts. This makes the electrolytic capacitors ideal for use in an implantable medical device.
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8.发明授权Implantable cardioverter defibrillator designed for use in a magnetic resonance imaging environment 有权设计用于磁共振成像环境的植入式心律转复除颤器公开(公告)号：US09504843B2
公开(公告)日：2016-11-29
申请号：US14796154
申请日：2015-07-10
Applicant: Greatbatch Ltd.
Inventor： Dominick J. Frustaci , Robert A. Stevenson , Barry C. Muffoletto
CPC classification number: A61N1/3987 , A61B5/044 , A61B5/0452 , A61B5/055 , A61B5/0555 , A61B5/14542 , A61B5/742 , A61B5/746 , A61N1/3718 , A61N1/3925 , A61N1/3956 , A61N1/3962
Abstract: An implantable cardioverter defibrillator (ICD) includes a communication interface operable to receive a communication signal from an external programmer. With the ICD not being in the presence of an MRI field generated by an MRI scanner, a communication signal is sent precharging a high energy storage capacitor before the patient undergoes the MRI scan. The signal also switches the ICD into an MRI mode which turns off the ICD's sensing functions detecting a dangerous ventricular arrhythmia. An operator monitors the patient's vital signs with sensors connected to the patient. If the patient does require the defibrillation shock, the operator sends a second communication signal delivering the defibrillation shock from the precharged high energy storage capacitor of the ICD. The patient can then be removed from the MRI scanner and the RF and gradient fields of the MRI scanner turned off.
Abstract translation: 植入式心律转复除颤器（ICD）包括可操作以从外部编程器接收通信信号的通信接口。 在ICD不存在由MRI扫描仪产生的MRI场的情况下，在患者进行MRI扫描之前，通信信号被预先充电高能量存储电容器。 该信号还将ICD切换到MRI模式，其将ICD的感测功能关闭以检测危险的室性心律失常。 操作员通过连接到患者的传感器监测患者的生命体征。 如果患者确实需要除颤电击，则操作者从ICD的预充电高能量存储电容器发送递送除颤电击的第二通信信号。 然后可以从MRI扫描仪中取出患者，并关闭MRI扫描仪的RF和梯度场。
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公开(公告)号：US20160225533A1
公开(公告)日：2016-08-04
申请号：US15095196
申请日：2016-04-11
Applicant: Greatbatch Ltd.
Inventor： Yanming Liu , Barry C. Muffoletto , Jason T. Hahl
CPC classification number: H01G9/0525 , B22F1/0096 , B22F3/002 , B22F3/11 , B22F3/24 , B22F5/00 , B22F2998/10 , B22F2999/00 , H01G9/0029 , H01G9/0032 , H01G9/02 , H01G9/052 , H01G9/10 , H01G9/145 , B22F9/04 , B22F3/02 , B22F3/10 , B22F2003/242 , B22F2201/11 , B22F1/0014 , B22F1/004 , B22F3/1109
Abstract: Tantalum powders produced using a tantalum fiber precursor are described. The tantalum fiber precursor is chopped or cut into short lengths having a uniform fiber thickness and favorable aspect ratio. The chopped fibers are formed into a primary powder having a controlled size and shape, narrow/tight particle size distribution, and low impurity level. The primary powder is then agglomerated into an agglomerated powder displaying suitable flowability and pressability such that pellets with good structural integrity and uniform pellet porosity are manufacturable. The pellet is sintered and anodized to a desired formation voltage. The thusly created capacitor anode has a dual morphology or dual porosity provided by a primary porosity of the individual tantalum fibers making up the primary powder and a larger secondary porosity formed between the primary powders agglomerated into the agglomerated powder.
Abstract translation: 描述了使用钽纤维前体制备的钽粉末。 将钽纤维前体切碎或切割成具有均匀的纤维厚度和有利的纵横比的短长度。 短切纤维形成具有受控尺寸和形状，窄/紧密粒度分布和低杂质水平的初级粉末。 然后将初级粉末凝聚成显示合适的流动性和压制性的附聚粉末，使得具有良好的结构完整性和均匀的颗粒孔隙率的颗粒是可制造的。 将颗粒烧结并阳极氧化至所需的地层电压。 由此产生的电容器阳极具有由构成初级粉末的各个钽纤维的初级孔隙率提供的双重形态或双重孔隙，并且在附聚到聚集的粉末中的初级粉末之间形成较大的次生孔隙。
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10.发明申请公开(公告)号：US20150314132A1
公开(公告)日：2015-11-05
申请号：US14796154
申请日：2015-07-10
Applicant: Greatbatch Ltd.
Inventor： Dominick J. Frustaci , Robert A. Stevenson , Barry C. Muffoletto
CPC classification number: A61N1/3987 , A61B5/044 , A61B5/0452 , A61B5/055 , A61B5/0555 , A61B5/14542 , A61B5/742 , A61B5/746 , A61N1/3718 , A61N1/3925 , A61N1/3956 , A61N1/3962
Abstract: An implantable cardioverter defibrillator (ICD) includes a communication interface operable to receive a communication signal from an external programmer. With the ICD not being in the presence of an MRI field generated by an MRI scanner, a communication signal is sent precharging a high energy storage capacitor before the patient undergoes the MRI scan. The signal also switches the ICD into an MRI mode which turns off the ICD's sensing functions detecting a dangerous ventricular arrhythmia. An operator monitors the patient's vital signs with sensors connected to the patient. If the patient does require the defibrillation shock, the operator sends a second communication signal delivering the defibrillation shock from the precharged high energy storage capacitor of the ICD. The patient can then be removed from the MRI scanner and the RF and gradient fields of the MRI scanner turned off.
Abstract translation: 植入式心律转复除颤器（ICD）包括可操作以从外部编程器接收通信信号的通信接口。 在ICD不存在由MRI扫描仪产生的MRI场的情况下，在患者进行MRI扫描之前，通信信号被预先充电高能量存储电容器。 该信号还将ICD切换到MRI模式，其将ICD的感测功能关闭以检测危险的室性心律失常。 操作员通过连接到患者的传感器监测患者的生命体征。 如果患者确实需要除颤电击，则操作者从ICD的预充电高能量存储电容器发送递送除颤电击的第二通信信号。 然后可以从MRI扫描仪中取出患者，并关闭MRI扫描仪的RF和梯度场。
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