Single X-ray Marker with Glow-in-the-Dark and Radiopaque Frame
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Solution Overview
Problem
Conventional x-ray markers require two separate markers for indicating the left or right side of a patient, are easily lost, and can be mistaken for image artifacts, especially in low-light conditions.
Innovation Solution
A single x-ray marker with a radiopaque frame and glow-in-the-dark features, featuring a base member with cavities for 'R' and 'L' indicia and a movable blocker shield that can be positioned to eliminate artifacts and provide clear identification in low-light environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two separate markers are used to indicate left or right side, then clear identification is achieved, but the complexity of carrying and tracking markers increases
Solution Approach 1:
The patent combines two separate markers (L and R) into a single dual-sided marker. The marker has an L indicium on one side and an R indicium on the opposite side, allowing the technician to carry only one marker while still being able to indicate both left and right sides by flipping the marker to the appropriate side.
Solution Approach 2:
The single marker serves multiple functions by having both L and R indicia. It can be used to mark either the left side or the right side of the patient's anatomy depending on which side is facing up, making one marker universal for both marking purposes.
2Reliability
If markers are used in dark areas, then patient side identification is maintained, but the visibility of the marker itself decreases
Solution Approach 1:
The patent applies phosphorescent or glow-in-the-dark material to the marker, causing it to emit light in dark environments. This allows the marker to be visible to the technician during placement in dark areas while still appearing radiopaque on the x-ray image for accurate identification.
3Ease of operation
If simple markers are used, then ease of operation is improved, but the ability to distinguish from image artifacts decreases
Solution Approach 1:
The patent incorporates an asymmetric radiopaque frame surrounding the indicium. This frame has a specific asymmetric shape that is clearly distinguishable from common image artifacts such as bullets or surgical clips, which typically have different geometric characteristics. The asymmetric frame maintains simplicity while providing reliable differentiation.
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 solution allows for efficient use in poorly lit areas, prevents misidentification with image artifacts, and eliminates the need to carry two markers, ensuring clear and accurate marking of patient sides during x-ray procedures.
Implementation Method 1
a base member containing a radiopaque frame and a radiopaque blocker shield
Implementation Method 2
glow-in-the-dark features to facilitate use in poorly lit areas
Data Source
AI summary
A single marker for use in recording either of two different characters, an “R” or an “L,” on an x-ray image, corresponding to the “left” or “right” side exposure area of the anatomical part(s) of a patient. The marker consists of four embodiments, a base marker, a swivel marker, a hinge marker, or a slider marker, which selectively indicate either the “R” or “L” exposure area of the patient. In addition, the marker also glows in the dark to facilitate usage in poorly lit areas and includes a radiopaque frame within its base to help the x-ray technician confirm that the technician is not viewing image artifacts.