Disposable Speculum Single-Sided Support and Illumination
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Solution Overview
Problem
Conventional vaginal speculums, particularly metallic ones, cause discomfort and trauma due to exposed joints and sharp edges, and plastic speculums with double-hinge designs lack structural integrity and obstruct vision, while lacking built-in illumination, leading to difficulties in examination and procedural efficiency.
Innovation Solution
A disposable vaginal speculum with a single-sided support mechanism and integrated light source, featuring a linear support member and a combined smoke channel light guide, allowing for improved maneuverability and illumination within the vaginal cavity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a double-hinge design is used in plastic specula to support oblique stress, then structural integrity is improved, but device complexity increases and vision is obstructed
Solution Approach 1:
The patent employs asymmetric hinge placement with a single hinge positioned on one side of the speculum rather than symmetric double-hinge design. This asymmetric configuration provides sufficient structural support while reducing complexity and eliminating visual obstruction caused by dual hinges
Solution Approach 2:
The patent introduces a linear support member that extends along the length of the speculum blades, providing structural reinforcement in a different dimensional orientation. This linear support compensates for the reduced hinge support, allowing single-hinge design to maintain adequate structural integrity
2Strength
If a double-hinge design is used in plastic specula, then structural integrity is improved, but ease of operation deteriorates due to difficulty in manipulating instruments
Solution Approach 1:
By positioning the single hinge asymmetrically on one side only, the patent creates an open workspace on the opposite side, facilitating easier insertion and manipulation of surgical instruments such as scissors, forceps, and probes during gynecological procedures
Solution Approach 2:
The speculum is designed with separable functional zones: the hinged connection area provides structural support while the opposite open area allows unrestricted instrument access and manipulation
3Device complexity
If conventional specula without built-in illumination are used, then device complexity is reduced, but illumination intensity is insufficient for adequate examination
Solution Approach 1:
The patent integrates the illumination function directly into the speculum structure by incorporating a light source and light guide within the device body. This merging of functions provides adequate illumination for examination while maintaining a unified, compact design
Solution Approach 2:
The speculum is designed as a multi-functional device that combines examination, illumination, and smoke evacuation capabilities in a single instrument, eliminating the need for separate lighting equipment and gooseneck lamps
4Manufacturing precision
If metallic specula with exposed joints are used, then manufacturing precision is improved, but object-affected harmful factors increase due to trauma and discomfort
Solution Approach 1:
The patent employs a disposable plastic speculum design that is discarded after single use. This eliminates the need for complex reusable joints and metal components, preventing tissue trauma from exposed joints and sharp edges while maintaining adequate manufacturing precision for the disposable structure
Solution Approach 2:
The patent transitions from metal material to plastic material, changing the physical parameters of the speculum. This material change eliminates cold metal contact, removes exposed joints, and provides smoother surfaces that reduce tissue trauma and patient discomfort
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 design enhances patient comfort by reducing trauma, improves procedural efficiency with unobstructed vision and illumination, and minimizes cross-contamination through single-use disposable design.
Implementation Method 1
a combined smoke channel light guide directs light from a light source in the handle to a distal end of the lower blade for smoke removal
Data Source
AI summary
The embodiments disclosed herein relate to disposable speculums, and more particularly to disposable vaginal speculums having single-sided support and operating mechanisms. In an embodiment, a speculum includes an upper member having an upper blade and a hinge assembly; a lower member having a handle and a lower blade, wherein a combined smoke channel light guide directs light from a light source in the handle to a distal end of the lower blade for smoke removal; and a linear support member having a proximal end, a distal end, and an elongated body therebetween, the linear support member vertically moveable within a track positioned in the lower member.