Implantable device and control method
A technology for implanting equipment and controllers, applied in control devices, prostheses, cardiac catheters, etc., can solve problems such as ineffectiveness and unreliability of equipment
Pending Publication Date: 2020-09-18
KONINKLJIJKE PHILIPS NV
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- Description
- Claims
- Application Information
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Problems solved by technology
In these cases, strong forces may overwhelm the actuator force, rendering the device ineffective or at least unreliable
Method used
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[0070] The invention will be described with reference to the accompanying drawings.
[0071] It should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the devices, systems and methods, are intended for purposes of illustration only and are not intended to limit the scope of the invention. These and other features, aspects and advantages of the devices, systems and methods of the present invention will become better understood from the following description, appended claims and drawings. It should be understood that the drawings are only schematic and not drawn to scale. It should also be understood that the same reference numbers are used throughout the drawings to refer to the same or similar parts.
[0072] The present invention provides an implantable device comprising an EAP actuator and a sensing device. The sensing means is configured to monitor an external force against the device acting in the direction of ...
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An implantable device (12) comprises an EAP actuator and a sensing means. The sensing means is configured to monitor a force external to the device acting in a direction either with or counter to a direction of actuation of the actuator, and a controller is adapted to control the actuator to actuate at a moment when force counter to the direction of actuation is sensed to be lowest within a givenmonitoring window or force with the direction of actuation is sensed to be at its highest within a given time window. In this way actuation is effected at a moment of least resistance force, reducingthe power needed for deployment of the actuator, and permitting actuation to occur even in conditions experiencing large variable forces.
Description
technical field [0001] The present invention relates to implantable devices, in particular to implantable devices comprising electroactive polymer actuators. Background technique [0002] There is an unmet clinical need for accurate, unobtrusive and long-term monitoring of patients with chronic diseases such as heart failure, peripheral arterial disease or hypertension. The purpose of surveillance is to provide reassurance or early warning, or to reduce or control drug use. Wearable or skin-insertable devices do not serve this need because they do not have direct access to the cardiovascular system. To meet this clinical need, smart implantable devices are required. Typically, "intelligence" can refer to the integration of sensors and actuators. These may include, for example, blood pressure sensors (Cardiomems), restenosis sensors (Instent), or actuators for controlled drug delivery, such as microperistaltic pumps (MPS Microsystems). [0003] There is also a need for in...
Claims
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IPC IPC(8): A61M1/10A61F2/24A61M1/12H01L41/193H01L41/08A61M60/135A61M60/268A61M60/31A61M60/454A61M60/531A61M60/861A61M60/873H10N30/00H10N30/80H10N30/857
CPCA61F2/2412A61F2250/0001A61M2205/0283A61M60/268A61M60/531A61M60/31A61M60/135A61M60/454A61M60/861A61M60/873H10N30/857A61F2/2476A61F2/2409A61F2/2481A61L27/14A61L27/50A61M2205/3303A61M2205/50A61M2205/8206A61M2230/04H02J50/05H02J50/10A61B5/0215A61B5/4836A61F2/06A61F2/82A61F2002/068A61L31/04A61L31/14H10N30/802H10N30/101
Inventor C·P·亨德里克斯M·T·约翰逊A·F·科伦M·I·范利斯豪特A·R·希尔格斯A·范德霍斯特
Owner KONINKLJIJKE PHILIPS NV