Curved Transrectal Probe Shaft for Reduced Insertion Force
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Solution Overview
Problem
Transrectal ultrasonic probes inserted into the rectum can cause discomfort and pain to subjects, making the insertion process challenging for both the subject and the operator.
Innovation Solution
A transrectal ultrasonic probe with a slim, curved insertion unit and a shaft design that opposes the direction of ultrasonic wave transmission, reducing the force required for insertion and facilitating easier insertion into the rectum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transrectal ultrasonic probe is inserted into the rectum to perform ultrasonic imaging of the prostate, then the imaging function is achieved, but the subject experiences discomfort and pain
Solution Approach 1:
The shaft is designed with a curved shape that opposes the direction of ultrasonic wave transmission. This curvature allows the probe to follow the natural anatomical curvature of the rectum, reducing mechanical stress and discomfort on the subject while maintaining proper positioning for effective prostate imaging
Solution Approach 2:
The insertion unit features a slim shape at the distal end for comfortable rectal insertion, while the shaft provides structural support and directional control. This localized differentiation of properties allows the probe to minimize intrusion discomfort while maintaining imaging functionality
2Reliability
If the transrectal ultrasonic probe is inserted into the rectum, then ultrasonic imaging can be performed, but the insertion process is challenging for the operator
Solution Approach 1:
The curved shaft design naturally conforms to the rectal canal's anatomy, allowing the operator to insert the probe more easily without excessive force or complex manipulation. The curvature guides the probe along the natural path, reducing insertion difficulty
Solution Approach 2:
Instead of making the distal end rigid and straight for structural support, the patent inverts the approach by making the shaft curved and flexible, allowing the distal end to adapt to anatomical constraints while the proximal end maintains control
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
The probe design reduces the burden on the subject during insertion and makes the process easier for the operator by minimizing discomfort and improving the alignment of ultrasonic waves with the prostate for effective imaging.
Implementation Method 1
an ultrasonic oscillator that transmits ultrasonic waves laterally to the insertion unit
Data Source
AI summary
A probe, which is a transrectal ultrasonic probe, includes an insertion unit to be inserted into the rectum of a subject. The insertion unit includes a shaft in a slim shape closer to the proximal side, and an insertion tip portion that is connected to the distal end of the shaft and has an acoustic head that transmits and receives ultrasonic waves. The ultrasonic waves are transmitted from the acoustic head laterally to the insertion unit. The extension direction of the shaft from the proximal side toward the distal side is curved in the direction opposite to the direction D in which the acoustic head transmits the ultrasonic waves.