Cervical Sizing Device with Pivotable Arms
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Solution Overview
Problem
Current medical procedures for determining the size of a cervix during surgeries like total laparoscopic hysterectomy often require multiple insertions and potential discarding of medical devices, leading to inefficiency and increased costs due to the need for correctly sized devices.
Innovation Solution
A cervical sizing device with pivotable arms and arcuate contact members that can be adjusted to fit around the cervix, providing a measurement scale for determining the approximate size without needing multiple devices, allowing for accurate selection of appropriately sized medical tools like colpotomizer cups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple medical devices are inserted to determine cervix size, then accurate sizing can be achieved, but the number of devices inserted and discarded increases
Solution Approach 1:
The device is divided into functional segments: an outer body for insertion, pivotable arms for measurement, and contact members for cervix engagement. This segmentation allows the measurement function to be separated from the therapeutic device, enabling accurate sizing without inserting multiple complete devices.
Solution Approach 2:
The device performs cervix sizing measurements before the main surgical procedure begins. By obtaining accurate measurements in advance, the surgeon can select the appropriately sized therapeutic device beforehand, preventing the insertion and subsequent discarding of incorrectly sized devices.
2Reliability
If multiple medical devices are tried to find the correct size, then the correct device can be selected, but procedural time increases
Solution Approach 1:
The device performs cervix sizing measurements before the main surgical procedure begins. By obtaining accurate measurements in advance, the surgeon can select the appropriately sized therapeutic device beforehand, preventing the insertion and subsequent discarding of incorrectly sized devices.
Solution Approach 2:
The device replaces the trial-and-error mechanical approach of inserting multiple therapeutic devices with a dedicated measurement system. The pivotable arms with contact members provide direct mechanical measurement of cervix dimensions, eliminating the need for repeated therapeutic device insertions.
3Measurement precision
If a dedicated sizing device is used, then device selection accuracy improves, but the complexity of the surgical kit increases
Solution Approach 1:
The device combines multiple functions in a single instrument: insertion through the vagina, engagement with the cervix, measurement of cervix dimensions, and provision of reference markings for device selection. This multi-functionality eliminates the need for separate sizing instruments, reducing overall kit complexity.
Solution Approach 2:
The measurement arms, contact members, and reference markings are merged into a single integrated device that can be inserted and used concurrently with therapeutic device selection. This consolidation reduces the number of separate components needed in the surgical kit.
Data Source
AI summary
This disclosure relates to cervical sizing devices and related kits and methods. In some aspects, a cervical sizing device includes an elongate arm and a member positioned at a distal end region of the elongate arm. The cervical sizing device can be used to determine an approximate size of a cervix when the member is brought into contact with an outer surface of the cervix.