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公开(公告)号：US09974901B2
公开(公告)日：2018-05-22
申请号：US14301909
申请日：2014-06-11
Applicant: Medtronic, Inc.
Inventor： James M. Haase
CPC classification number: A61M5/14276 , A61M5/1452
Abstract: An actuator for an infusion drive mechanism comprises a piston defining a first axis and being movable within a passageway of the infusion drive mechanism to convey at least one infusion medium. The passageway defines a longitudinal axis. An armature is connected to the piston and defines at least one cavity configured for disposal of a biasing member engageable with a surface of the infusion drive mechanism to orient the first axis transverse relative to the longitudinal axis. Systems and methods of use are disclosed.
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公开(公告)号：US20170340814A1
公开(公告)日：2017-11-30
申请号：US15681957
申请日：2017-08-21
Applicant: Medtronic, Inc.
Inventor： Keith A. Miesel , James M. Haase , Chris J. Paidosh , Darren A. Janzig , Timothy J. Denison
CPC classification number: A61M5/14276 , A61M39/0208 , A61M2205/3317 , A61M2205/3331 , G01L9/0072 , G01L15/00 , G01L19/0023 , G01L19/0069 , G01L19/086 , G01L19/143 , G01L19/148 , G01L19/149
Abstract: The disclosure is directed to a pressure sensor of an implantable medical device. The pressure sensor may utilize detect fluid pressure based on a changing capacitance between two capacitive elements. The pressure sensor may define at least a portion of a fluid enclosure of the IMD. In one example, the pressure sensor has a self-aligning housing shape that occludes an opening in the pump bulkhead of the IMD. An operative surface of the pressure and the portion of the fluid enclosure may be formed of a corrosion resistant and/or biocompatible material. A first capacitive element of the pressure sensor may be a metal alloy diaphragm that deflects in response to external fluid pressure. A second capacitive element of the pressure sensor may be a metal coating on a rigid insulator sealed from the fluid by the diaphragm and a housing of the sensor.
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公开(公告)号：US11426514B2
公开(公告)日：2022-08-30
申请号：US16565013
申请日：2019-09-09
Applicant: Medtronic, Inc.
Inventor： Keith A. Miesel , James M. Haase , Chris J. Paidosh , Darren A. Janzig , Timothy J. Denison
Abstract: The disclosure is directed to a pressure sensor of an implantable medical device. The pressure sensor may utilize detect fluid pressure based on a changing capacitance between two capacitive elements. The pressure sensor may define at least a portion of a fluid enclosure of the IMD. In one example, the pressure sensor has a self-aligning housing shape that occludes an opening in the pump bulkhead of the IMD. An operative surface of the pressure and the portion of the fluid enclosure may be formed of a corrosion resistant and/or biocompatible material. A first capacitive element of the pressure sensor may be a metal alloy diaphragm that deflects in response to external fluid pressure. A second capacitive element of the pressure sensor may be a metal coating on a rigid insulator sealed from the fluid by the diaphragm and a housing of the sensor.
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公开(公告)号：US11147918B2
公开(公告)日：2021-10-19
申请号：US16168358
申请日：2018-10-23
Applicant: Medtronic, Inc.
Inventor： Steven Christenson , Touby Drew , James M. Haase , Scott A. Sarkinen
Abstract: A medicament delivery system configured to reduce the risk of inadvertently injecting medicament directly into a patient during a refill procedure via an external refilling apparatus. The medicament delivery system may include an implantable medical pump having a refillable medicament reservoir accessible via an access port, wherein the refillable medicament reservoir includes a flexible diaphragm having a nonlinear spring rate configured to create a relative vacuum within a medicament chamber when medicament is expelled from the medicament chamber beyond a predefined threshold, so as to spontaneously draw a quantity of medicament into the medicament chamber during the refill procedure to reestablish the predefined threshold, thereby confirming proper placement of a portion of the external refilling apparatus into the access port.
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公开(公告)号：US20180264190A1
公开(公告)日：2018-09-20
申请号：US15962644
申请日：2018-04-25
Applicant: Medtronic, Inc.
Inventor： James M. Haase , Nicholas R. Whitehead , Ronald L. Mezera
CPC classification number: A61M5/14276 , A61M5/14216 , A61M5/165 , A61M5/36 , A61M2205/7518 , F04B17/042 , F04B19/006 , F04B35/045 , F04B53/008 , F04B53/1032
Abstract: An implantable infusion device includes a reservoir for housing an infusion medium and a drive mechanism having an inlet chamber, a piston and a piston channel. The inlet chamber is in fluid communication with the reservoir. The piston channel is in fluid communication with the inlet chamber, and has a distal end and a proximal end, the proximal end being closer to the inlet channel than the distal end. The piston is axially moveable within the piston channel to drive infusion medium out of the distal end of the piston channel. The clearance between the piston and the channel is sufficiently small to prevent undissolved gas in the inlet chamber from passing through the clearance. The inlet chamber may be sufficiently large to allow undissolved gas to accumulate without adversely affecting the performance of the infusion device.
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Patent Agency Ranking
公开(公告)号：US20150359963A1
公开(公告)日：2015-12-17
申请号：US14301909
申请日：2014-06-11
Applicant: Medtronic, Inc.
Inventor： James M. Haase
IPC: A61M5/142
CPC classification number: A61M5/14276 , A61M5/1452
Abstract: An actuator for an infusion drive mechanism comprises a piston defining a first axis and being movable within a passageway of the infusion drive mechanism to convey at least one infusion medium. The passageway defines a longitudinal axis. An armature is connected to the piston and defines at least one cavity configured for disposal of a biasing member engageable with a surface of the infusion drive mechanism to orient the first axis transverse relative to the longitudinal axis. Systems and methods of use are disclosed.
Abstract translation: 用于输注驱动机构的致动器包括限定第一轴线的活塞并且可在输注驱动机构的通道内移动以输送至少一个输注介质。 通道限定纵向轴线。 电枢连接到活塞并且限定至少一个空腔，其被构造成用于处置可与输液驱动机构的表面接合的偏置构件，以使第一轴线相对于纵向轴线定向。 公开了系统和使用方法。
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公开(公告)号：US20180193556A1
公开(公告)日：2018-07-12
申请号：US15912024
申请日：2018-03-05
Applicant: Medtronic, Inc.
Inventor： James M. Haase
CPC classification number: A61M5/14276 , A61M5/1452
Abstract: An actuator for an infusion drive mechanism comprises a piston defining a first axis and being movable within a passageway of the infusion drive mechanism to convey at least one infusion medium. The passageway defines a longitudinal axis. An armature is connected to the piston and defines at least one cavity configured for disposal of a biasing member engageable with a surface of the infusion drive mechanism to orient the first axis transverse relative to the longitudinal axis. Systems and methods of use are disclosed.
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公开(公告)号：US20230256165A1
公开(公告)日：2023-08-17
申请号：US17673620
申请日：2022-02-16
Applicant: Medtronic, Inc.
Inventor： Touby A. Drew , James M. Haase
CPC classification number: A61M5/16809 , A61M5/1684 , A61M5/14228 , A61M5/14276 , A61M2005/16868 , A61M2205/332
Abstract: An implantable pump configured to enable tuning of a delivery velocity of a fixed quantity of medicament. The implantable pump including a pump, an accumulator and a valve configured to enable tuning of a delivery velocity of a fixed quantity of medicament, wherein operating the pump with the valve continuously in the open state enables a steady-state delivery of medicament at a first velocity, and wherein closing of the valve enables the pump to at least partially fill the accumulator and subsequent opening of the valve enables the at least partially filled accumulator to dispense medicament, thereby delivering a bolus of medicament at a second velocity, wherein the second velocity is greater than the first velocity.
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公开(公告)号：US11285258B2
公开(公告)日：2022-03-29
申请号：US16173531
申请日：2018-10-29
Applicant: Medtronic, Inc.
Inventor： James M. Haase
Abstract: A therapeutic fluid delivery system including, in various examples, a first reservoir configured to house a first therapeutic fluid, a second reservoir configured to house a second therapeutic fluid, and an inlet port configured to receive a fluid delivery needle is described. The inlet port is configured for fluid communication between the fluid delivery needle and the first reservoir, and the inlet port is further configured for fluid communication between the fluid delivery needle and the second reservoir.
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公开(公告)号：US20200001007A1
公开(公告)日：2020-01-02
申请号：US16565013
申请日：2019-09-09
Applicant: Medtronic, Inc.
Inventor： Keith A. Miesel , James M. Haase , Chris J. Paidosh , Darren A. Janzig , Timothy J. Denison
Abstract: The disclosure is directed to a pressure sensor of an implantable medical device. The pressure sensor may utilize detect fluid pressure based on a changing capacitance between two capacitive elements. The pressure sensor may define at least a portion of a fluid enclosure of the IMD. In one example, the pressure sensor has a self-aligning housing shape that occludes an opening in the pump bulkhead of the IMD. An operative surface of the pressure and the portion of the fluid enclosure may be formed of a corrosion resistant and/or biocompatible material. A first capacitive element of the pressure sensor may be a metal alloy diaphragm that deflects in response to external fluid pressure. A second capacitive element of the pressure sensor may be a metal coating on a rigid insulator sealed from the fluid by the diaphragm and a housing of the sensor.
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