Ultrasonic Sensor Adhesive Pad for C-Arm Collision Avoidance
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Solution Overview
Problem
Current collision avoidance systems in medical imaging, such as C-arm x-ray imaging systems, are inefficient due to the inability of ultrasonic sensors to detect objects through sterile draping, leading to potential collisions and the need for conservative motion control, which slows down the imaging process.
Innovation Solution
Incorporating adhesive pads on sterile drapes to maintain contact with ultrasonic sensors, allowing them to function effectively despite the draping, and using multiple ultrasonic sensors to detect objects and update collision models in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sterile draping is applied to cover imaging system components, then sterile field protection is improved, but ultrasonic sensor detection capability deteriorates
Solution Approach 1:
An adhesive pad is introduced as an intermediary component between the sterile drape and the ultrasonic sensor. The adhesive pad maintains direct contact with the sensor surface while allowing the sterile drape to be positioned over it, thus preserving both sterile field protection and ultrasonic detection capability without requiring the sensor to be exposed.
Solution Approach 2:
The sterile drape is designed with different properties at different locations: the adhesive pad area provides sensor contact functionality while the rest of the drape maintains sterile barrier properties. This local differentiation allows the drape to serve dual purposes - protecting the sterile field and enabling sensor operation.
2Reliability
If conservative motion control is used to prevent collisions, then safety is improved, but imaging process efficiency deteriorates
Solution Approach 1:
Ultrasonic sensors provide real-time feedback about the proximity of objects to the imaging system components. This feedback enables the motion control system to make informed decisions about safe movement, allowing faster and more efficient positioning while maintaining safety through continuous monitoring rather than conservative restrictions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances collision detection accuracy and prevents collisions by ensuring ultrasonic sensors can operate through sterile draping, allowing for safer and more efficient movement of imaging system components during procedures.
Implementation Method 1
the sterile drape including an adhesive pad configured to contact a front face of the ultrasonic sensor
Implementation Method 2
an ultrasonic sensor positioned on the movable arm, the x-ray source, or the x-ray detector
Data Source
AI summary
Various systems are provided for collision avoidance in an x-ray imaging system. In one example, an x-ray system includes a moveable arm comprising an x-ray source arranged at a first end and an x-ray detector arranged at a second end, an ultrasonic sensor positioned on the movable arm, the x-ray source, or the x-ray detector, and a sterile drape configured to be positioned over at least a portion of the movable arm, the x-ray source, and/or the x-ray detector, the sterile drape including an adhesive pad configured to contact a front face of the ultrasonic sensor.