Contact sensor positioning system, cannula insertion system and method to position a contact sensor
Inventors
Overbeeke, Toon Olaf • Joseph, Brian Robert • KARSSEN, Johannes Gerhard Daniël • Jonker, Arris Cornelis • van Schie, Guido • DE GREEF, Mark
Assignees
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Publication Number
US-12458320-B2
Publication Date
2025-11-04
Expiration Date
Abstract
A cannula insertion system includes: a contact sensor positioning system arranged to determine a suitable location for insertion of the cannula, where the contact sensor positioning system includes: a contact sensor having a contact surface to be placed at least partially on the human or animal body to enable measurement with the contact sensor, a positioning device configured to support and position the contact sensor, and a control device arranged to control the positioning device to position the contact sensor in a desired position. The contact sensor positioning system includes one or more sensors to determine a position and/or contact force related parameter representative for a position and/or contact force of the contact sensor, and a processing device to process the position and/or contact force related parameter and to provide a position control signal to the control device, where the contact sensor is an imaging sensor.
Core Innovation
A cannula insertion system is provided for inserting a cannula into a human or animal body. The system includes a contact sensor positioning system that determines a suitable location for insertion of the cannula, and the contact sensor has a contact surface to be placed at least partially on the human or animal body, wherein the contact sensor is an imaging sensor.
A positioning device supports and positions the contact sensor, and a control device controls the positioning device to position the contact sensor in a desired position. One or more sensors determine a position and/or contact force related parameter representative of a position and/or contact force of the contact sensor, and a processing device processes the parameter and provides a position control signal to the control device on the basis of the parameter.
The processing device determines the position control signal by image processing of one or more images obtained by the imaging sensor. The position control signal is configured to move the contact sensor in an automated scanning movement comprising movement transverse to an insertion direction of the cannula until a blood vessel is identified in the one or more images.
Claims Coverage
The independent claims are clm-00001 and clm-00021. They define an imaging-based contact sensor positioning system and a corresponding method using measured position and/or contact-force related parameters and image processing to generate a position control signal that drives automated transverse scanning until a blood vessel is identified. The inventive features below capture the main elements recited in each independent claim.
Imaging contact sensor for cannula insertion location determination
A contact sensor positioning system determines a suitable location for insertion of the cannula, the contact sensor having a contact surface to be placed at least partially on the human or animal body, wherein the contact sensor is an imaging sensor.
Positioning device and control device to place the contact sensor in a desired position
A positioning device supports and positions the contact sensor, and a control device controls the positioning device to position the contact sensor in a desired position.
Position and/or contact force related parameter based control
One or more sensors determine a position and/or contact force related parameter representative of a position and/or contact force of the contact sensor, and a processing device processes the parameter to provide a position control signal to the control device on the basis of the parameter.
Image processing-derived position control signal and automated transverse scanning
The processing device determines the position control signal by image processing of one or more images obtained by the imaging sensor, and the position control signal is configured to move the contact sensor in an automated scanning movement comprising movement transverse to an insertion direction of the cannula until a blood vessel is identified in the one or more images.
Across the independent claims, the core inventive concept is an imaging contact sensor positioning system or method that combines measured position and/or contact-force related parameters with image processing to generate a position control signal. That signal drives automated scanning transverse to the cannula insertion direction until a blood vessel is identified in the images.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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