Rotating Abrasive Device for Soft Tissue Channel Formation
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Solution Overview
Problem
Current medical devices for cutting and removing soft tissue are inefficient in creating well-defined channels with minimal invasion and discomfort, particularly in applications like reducing intraocular pressure by forming drainage channels in the sclero-corneal junction.
Innovation Solution
A device with an elongated member featuring a segment with a depression and cutting blades or a roughened surface, actuated by a rotor to rotate and create a channel in soft tissue, allowing for precise tissue removal and channel formation with controlled dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional cutting devices are used to remove soft tissue, then tissue removal can be achieved, but the channel formation is inefficient and causes excessive tissue invasion and discomfort
Solution Approach 1:
The patent replaces conventional mechanical cutting devices with a rotating abrasive device that uses friction and abrasion to remove tissue. The device features a rotating element with abrasive surfaces that grind away tissue to create channels, substituting blade-based mechanical cutting with friction-based material removal. This approach enables more efficient channel creation with reduced tissue trauma and discomfort.
Solution Approach 2:
The patent employs periodic rotation of the abrasive device to create channels through repeated grinding motions. The rotating element periodically contacts and removes tissue layers, allowing for controlled and progressive channel formation. This periodic action enables precise channel dimensions while minimizing continuous tissue invasion, thereby reducing discomfort.
2Manufacturing precision
If conventional cutting devices are used, then tissue can be removed, but precise control of channel dimensions is difficult to achieve
Solution Approach 1:
The patent controls channel dimensions by adjusting parameters of the rotating abrasive device, including rotation speed, applied pressure, and abrasive grain characteristics. By changing these parameters, precise control over channel diameter, depth, and shape is achieved. The device complexity is minimized by using a simple rotating mechanism where dimensional control is achieved through parameter adjustment rather than complex mechanical structures.
3Object-affected harmful factors
If minimal tissue invasion is pursued, then discomfort is reduced, but efficient channel creation becomes challenging
Solution Approach 1:
The patent substitutes blade-based cutting with friction-based abrasion using a rotating element. This mechanical substitution allows tissue to be removed through grinding rather than slicing, reducing the need for extensive tissue displacement and invasion. The friction-based mechanism efficiently removes tissue with minimal trauma, simultaneously achieving both productivity and reduced harmful effects.
Solution Approach 2:
The rotating abrasive element acts as an intermediary between the device and the tissue, mediating the tissue removal process through controlled friction and abrasion. This intermediary mechanism allows for gradual and controlled tissue removal that is both efficient and minimally invasive, bridging the gap between productivity and reduced tissue invasion.
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 effectively creates channels with controlled dimensions, reducing intraocular pressure by facilitating drainage and minimizing tissue invasion and discomfort, as demonstrated by its ability to form channels in the sclera-corneal junction with successful tissue removal and fluid drainage.
Implementation Method 1
one or more blades with a cutting edge peripheral to C and the one or more blades extending along at least part of said segment
Implementation Method 2
said segment comprises roughened external surface protruding outwardly from a circumference C
Data Source
AI summary
The present disclosure provides a device, an assembly comprising the device and a method making use of same, the device comprising an elongated member extending between a first end and a second end, and a segment proximal to the second end extending along a longitudinal axis X, said segment comprises at least one depression axially extending along at least a portion of said segment and an external surface having a circumference C; and one or more blades with a cutting edge peripheral to C and the one or more blades extending along at least part of said segment; the first end comprising an engagement element for engagement with a grip unit comprising a rotor to cause rotation of said device about said axis upon actuation of the rotor and the second end comprising a tissue piercing tip. The device, assembly and method are useful in creating a channel in a biological soft tissue, such as a drainage channel in the sclero-corneal junction area of the eye. This may be useful in reducing intra-ocular pressure.