Compact Speculum With Canopy Hinge and Lateral Wings
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Solution Overview
Problem
Conventional speculums for obstetrical and gynecological procedures often obstruct visualization of deep vaginal structures, constrain hand movement, and fail to prevent tissue and fluid from obscuring the work area, particularly in patients with excessive vaginal tissue, leading to discomfort and reduced examination efficiency.
Innovation Solution
A minimally obstructive compact speculum with rotatable wings and a hinge that forms a canopy, incorporating a ratchet mechanism, illumination system, fluid handler, and lubrication system, allowing for adjustable retraction and improved visualization without obstructing the work area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional speculums are used to separate anterior and posterior vaginal walls, then the cervix and vaginal walls can be visualized, but the lateral walls collapse toward the midline in patients with excessive vaginal tissue, obstructing the work area
Solution Approach 1:
The speculum is divided into multiple functional components: a main body with blades for separating anterior and posterior walls, and additional lateral retractors or wings that can be independently positioned to maintain lateral wall separation. This segmentation allows each component to address specific anatomical challenges without interfering with others.
Solution Approach 2:
The invention adds lateral retraction capability in addition to the conventional anterior-posterior blade separation. By introducing a lateral dimension of wall separation through retractors or wing structures, the speculum creates three-dimensional space maintenance, preventing midline collapse while preserving the conventional visualization function.
2Ease of operation
If blades are opened wider to maintain lateral walls apart, then visualization is improved, but patient discomfort increases due to excessive distension of vaginal tissue
Solution Approach 1:
The function of wall separation is divided between the main blades (anterior-posterior separation) and lateral retractors (lateral separation). This allows the blades to be opened to a moderate, comfortable degree while the lateral retractors provide additional spacing, achieving visualization without excessive distension.
Solution Approach 2:
Different parts of the speculum apply different separation forces at different locations. The blades apply separation at the anterior and posterior walls, while lateral retractors apply separation at the lateral walls. This localized, distributed approach achieves adequate visualization with minimal overall distension.
3Device complexity
If conventional speculums are used, then the instrument structure is simple, but tissue and fluids obstruct the work area and reduce examination efficiency
Solution Approach 1:
The speculum integrates multiple functions into a single instrument: anterior-posterior wall separation, lateral wall retraction, fluid evacuation, and illumination. This multi-functionality eliminates the need for separate instruments, keeping the overall system relatively simple while dramatically improving examination efficiency by preventing tissue and fluid obstruction.
Solution Approach 2:
The invention combines previously separate instruments (speculum blades, lateral retractors, fluid evacuation system, and illumination device) into a single integrated speculum assembly. This merging maintains structural simplicity while ensuring that all functions work together to prevent obstruction and maintain an open, clear work area throughout the examination.
4Reliability
If disposable speculums are used to prevent cross-contamination, then infection risk is reduced, but cost increases and environmental waste increases
Solution Approach 1:
The speculum incorporates a disposable cover or drape that can be easily attached and removed. This disposable component prevents cross-contamination between patients while the main speculum body can be sterilized and reused multiple times, reducing overall material waste compared to completely disposable speculums.
Solution Approach 2:
The design allows for selective disposal of only the portions that contact patients (covers, drapes, or disposable blades) while recovering and sterilizing the main instrument body for reuse. This partial disposal approach maintains infection control reliability while minimizing material waste and environmental impact.
Data Source
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AI summary
Medical instruments, particularly structurally-adjustable speculums and retractors for obstetrical and gynecological operations, procedures, and examinations, including a minimally obstructive compact speculum or retractor. The compact speculum may comprise a first wing and a second wing; and a hinge comprising at least one hinge component. The compact speculum may further comprise a ratchet that releasably holds the wings in an open position. The hinge component may comprise the ratchet, an illumination source, a fluid handler, a light guide, a lubrication source, or a combination thereof. The compact speculum may be a vaginal speculum.