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公开(公告)号:US11555131B2
公开(公告)日:2023-01-17
申请号:US17001290
申请日:2020-08-24
Applicant: Covidien LP
Inventor: Edwin Wang , Edwin Bon
IPC: A61L29/08 , A61L29/14 , C09D109/06 , C07D203/06 , C08B37/08 , C08F2/48 , C08K5/3412 , C08L9/06 , C08L23/16 , C08L33/08 , C08K5/00
Abstract: Example compliant hydrophilic coatings including a base coat and a lubricious top coat for coating a medical device including a flexible substrate. The coatings exhibit reduced cracking and peeling in response to deformation or expansion of the flexible substrate. Example techniques for coating a medical device including a flexible substrate with compliant hydrophilic coatings.
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公开(公告)号:US10759957B2
公开(公告)日:2020-09-01
申请号:US15712809
申请日:2017-09-22
Applicant: Covidien LP
Inventor: Edwin Wang , Edwin Bon
IPC: A61L29/14 , C09D109/06 , A61L29/08 , C07D203/06 , C08B37/08 , C08F2/48 , C08K5/3412 , C08L9/06 , C08L23/16 , C08L33/08 , C08K5/00
Abstract: Example compliant hydrophilic coatings including a base coat and a lubricious top coat for coating a medical device including a flexible substrate. The coatings exhibit reduced cracking and peeling in response to deformation or expansion of the flexible substrate. Example techniques for coating a medical device including a flexible substrate with compliant hydrophilic coatings.
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公开(公告)号:US10537710B2
公开(公告)日:2020-01-21
申请号:US15492337
申请日:2017-04-20
Applicant: Covidien LP
Inventor: Ujwal Jalgaonkar , Edwin Wang , David Marchesiello
Abstract: In some examples, a catheter includes a catheter body including an outer jacket and an inner liner. The inner liner may include a proximal section including a proximal end of the inner liner and a distal section including a distal end of the inner liner. The distal section may include an inner liner defining a plurality of cuts. Each cut may extend at least partially through the liner wall. The one or more cuts defined in the liner wall of the distal section of the inner liner may increase a bending flexibility of the distal section relative to the proximal section of the inner liner, while maintaining a suitable tensile strength of the distal section.
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公开(公告)号:US20150088060A1
公开(公告)日:2015-03-26
申请号:US14032255
申请日:2013-09-20
Applicant: Covidien LP
Inventor: Edwin Wang , Christopher Folk
IPC: A61M25/01
CPC classification number: A61M25/0105 , A61B2017/00203 , A61B2034/301 , A61M25/0158 , A61M2025/0058 , A61M2025/09133 , G06F19/00 , G16H40/63
Abstract: A catheter system is provided. The system includes a catheter having an elongated flexible body and one or more electroactive polymer actuators disposed along the elongated flexible body. The electroactive polymer actuators are adapted to cause a change in configuration of the elongated flexible body. The system also includes a controller adapted to transmit the control signal to the electroactive polymer actuators. The controller includes a memory storing a plurality of control signals corresponding to a plurality of predetermined configurations of the catheter and a user-interface coupled to the memory. The user-interface is configured to select one or more configurations from the plurality of predetermined configurations in response to user input.
Abstract translation: 提供导管系统。 该系统包括具有细长柔性体和沿细长柔性体设置的一个或多个电活性聚合物致动器的导管。 电活性聚合物致动器适于引起细长柔性体的构型变化。 该系统还包括适于将控制信号传输到电活性聚合物致动器的控制器。 所述控制器包括存储与所述导管的多个预定配置对应的多个控制信号的存储器和耦合到所述存储器的用户界面。 用户接口被配置为响应于用户输入从多个预定配置中选择一个或多个配置。
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公开(公告)号:US11883610B2
公开(公告)日:2024-01-30
申请号:US17008147
申请日:2020-08-31
Applicant: Covidien LP
Inventor: Eric Mintz , Ujwal Jalgaonkar , Emma Hurst , Kevin V. Nguyen , Edwin Wang
CPC classification number: A61M25/0144 , A61M25/0074 , A61M25/0136 , A61M25/0158 , A61M2025/0024 , A61M2210/0625
Abstract: In some examples, a catheter includes an expandable member configured to expand radially outward from a collapsed configuration to an expanded configuration. The expandable member is configured to be expanded and contracted in a controlled manner, e.g., in response to user actuation or automatically under the control of control circuitry of a device. For example, in some examples, control circuitry of a device can be configured to control the expandable member to expand and contract according to a predetermined expansion frequency or according to an expansion frequency determined based on a cardiac cycle of a patient.
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公开(公告)号:US20220072272A1
公开(公告)日:2022-03-10
申请号:US17014140
申请日:2020-09-08
Applicant: Covidien LP
Inventor: Edwin Wang , Ujwal Jalgaonkar , Xiaodong Ma
Abstract: In some examples, a catheter includes a structural support member including bamboo. For example, a catheter may include a bamboo coil and/or a bamboo braided member positioned between an inner liner and an outer jacket. The structural support member comprising bamboo may be configured to be biodegradable.
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公开(公告)号:US10568991B2
公开(公告)日:2020-02-25
申请号:US14824323
申请日:2015-08-12
Applicant: Covidien LP
Inventor: Edwin Wang , Komonn Lim
Abstract: A catheter may include a hypotube defining an inner circumferential surface, an outer circumferential surface, and an end. The hypotube may include a metal or alloy. The catheter also may include an inner liner attached to the inner circumferential surface of the hypotube and extending beyond the end of the hypotube, and the inner liner may include a fluoropolymer. The catheter further may include a hub and a single bonding layer attached to the outer circumferential surface of the hypotube and bonded to the hub. The single bonding layer may include a polyamide, a polyether-co-polyamide, or polyurethane and is the only layer between the outer circumferential surface of the hypotube and the hub.
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公开(公告)号:US20170106166A1
公开(公告)日:2017-04-20
申请号:US14885710
申请日:2015-10-16
Applicant: Covidien LP
Inventor: Edwin Wang , Komonn Lim , Bryant Pham
IPC: A61M25/00
CPC classification number: A61M25/0052 , A61M25/0009 , A61M25/0012 , A61M25/0015 , A61M25/0045 , A61M25/0053 , A61M25/0054 , A61M25/008 , A61M2025/0059
Abstract: In some examples, a catheter body includes an outer jacket positioned over a structural support member. A proximal portion of the structural support member comprises a straight or tapered polymer hypotube and a distal portion of the structural support member comprises a distal support member that is more flexible than the polymer hypotube. In some examples, the polymer hypotube defines one or more openings, through which an adhesive may be introduced between the polymer hypotube and an inner liner of the catheter body.
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公开(公告)号:US20170043060A1
公开(公告)日:2017-02-16
申请号:US14824323
申请日:2015-08-12
Applicant: Covidien LP
Inventor: Edwin Wang , Komonn Lim
Abstract: A catheter may include a hypotube defining an inner circumferential surface, an outer circumferential surface, and an end. The hypotube may include a metal or alloy. The catheter also may include an inner liner attached to the inner circumferential surface of the hypotube and extending beyond the end of the hypotube, and the inner liner may include a fluoropolymer. The catheter further may include a hub and a single bonding layer attached to the outer circumferential surface of the hypotube and bonded to the hub. The single bonding layer may include a polyamide, a polyether-co-polyamide, or polyurethane and is the only layer between the outer circumferential surface of the hypotube and the hub.
Abstract translation: 导管可以包括限定内圆周表面,外圆周表面和末端的海波管。 海波管可以包括金属或合金。 导管还可以包括附接到海波管的内周表面并延伸超出海波波的末端的内衬,并且内衬可以包括含氟聚合物。 导管还可以包括轮毂和附接到海波管的外周表面并结合到轮毂的单个粘合层。 单个粘合层可以包括聚酰胺,聚醚 - 共聚酰胺或聚氨酯,并且是海波管的外周表面和轮毂之间的唯一层。
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公开(公告)号:US20210178119A1
公开(公告)日:2021-06-17
申请号:US17179188
申请日:2021-02-18
Applicant: Covidien LP
Inventor: George Stern , Edwin Bon , Edwin Wang , Ujwal Jalgaonkar , Peter Skujins
Abstract: In some examples, a catheter includes an elongated body comprising proximal and distal portions. The distal portion of the elongated body comprises an inner liner that includes a proximal liner section and a distal liner section that include different materials, and an outer jacket positioned over the inner liner. The distal liner section has a first hardness and the proximal liner section has a second hardness, where the first hardness is less than the second hardness.
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