Vibrational Rotational Basket Lithotripsy
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Solution Overview
Problem
Current lithotripsy devices either dislodge or break up calculi, but not both efficiently, often requiring multiple devices and procedures, which increases complexity and risk for patients.
Innovation Solution
A lithotripsy device with a basket that combines rotational and ultrasonic energy to dislodge and break up calculi, using a longitudinal shaft as a waveguide for ultrasonic energy and a basket that can rotate and vibrate to collect and fragment calculi.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate devices are used for dislodging and breaking up calculi, then each device can be optimized for its specific function, but the overall procedure complexity increases and requires multiple incisions
Solution Approach 1:
The patent combines dislodging and breaking up functions into a single lithotripsy device with a basket that can perform both mechanical dislodgement and ultrasonic fragmentation, eliminating the need for multiple separate devices and procedures
Solution Approach 2:
The basket is designed with multi-functionality to serve as both a mechanical dislodging tool through rotation and an ultrasonic fragmentation tool through vibration, allowing one device to perform multiple therapeutic functions
2Reliability
If multiple devices and procedures are used to treat calculi, then comprehensive treatment can be achieved, but patient risk increases and procedure time extends
Solution Approach 1:
By merging dislodging and fragmentation capabilities into one device, the patent reduces the number of incisions required and shortens procedure time, thereby minimizing patient exposure to surgical risks while maintaining comprehensive treatment
3Productivity
If a single device performs both dislodging and fragmentation, then procedure efficiency improves, but the device structure becomes more complex
Solution Approach 1:
The basket serves multiple functions (mechanical dislodgement through rotation and ultrasonic fragmentation through vibration) within a single structural component, achieving procedure efficiency without proportionally increasing overall device complexity
Solution Approach 2:
The basket utilizes ultrasonic vibration to fragment calculi, adding a fragmentation capability to the mechanical dislodgement function without requiring a completely separate fragmentation device
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 device allows for efficient dislodgement and fragmentation of calculi in a single procedure, reducing the need for multiple devices and minimizing patient risk by shortening procedure time and reducing the number of incisions.
Implementation Method 1
a transducer acoustically coupled to at least one of the longitudinal shaft or the basket, the transducer configured to produce an ultrasonic excitation, wherein the basket is configured to vibrate in response to an acoustic energy input
Implementation Method 2
The shaft can act as a waveguide, propagating ultrasonic energy from a transducer to break up the calculus through vibration
Implementation Method 3
a rotational driver operably coupled to the longitudinal shaft and the basket, the rotational driver actuatable for rotating the longitudinal shaft and the basket
Data Source
AI summary
Various embodiments disclosed relate to a lithotripsy device. A device may include a longitudinal shaft extending between a proximal portion and distal portion. A device may include a basket extending along the distal portion of the longitudinal shaft, the basket configured to catch a target calculus. A device may include a rotational driver operably coupled to the longitudinal shaft and the basket, the rotational driver actuatable for rotating the longitudinal shaft and the basket, wherein at least one of the longitudinal shaft and the basket is configured to vibrate in response to an acoustic energy input.