Guidewire Insertion Device With Locking Dilator
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Solution Overview
Problem
Current medical procedures for accessing body cavities and bone require multiple steps and devices, making them inefficient for minimally invasive techniques.
Innovation Solution
A guidewire insertion device with a dilator and outer sheath system that allows for simultaneous dilation and guidewire insertion, featuring a locking mechanism to secure the guidewire during insertion and enable its movement post-insertion, facilitating anchoring in bone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate devices are used for tissue dilation and guidewire insertion, then each device can be optimized for its specific function, but the number of procedural steps increases and efficiency decreases
Solution Approach 1:
The patent combines the dilator and guidewire insertion capabilities into a single integrated device. The dilator includes an inner lumen that receives both the guidewire and outer sheath, allowing simultaneous dilation and guidewire placement in one procedural step rather than requiring separate devices and steps.
Solution Approach 2:
The dilator is designed with multi-functionality to serve as both a dilation tool and a guidewire insertion device. The handle portion includes features for both dilating tissue and securing the guidewire, making a single device perform multiple functions that previously required separate instruments.
2Reliability
If a locking mechanism is added to secure the guidewire during insertion, then guidewire stability is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is designed to be dynamic rather than static, allowing it to transition between locked and unlocked states. The mechanism can be actuated by the operator to lock the guidewire in place during insertion, then released when the guidewire needs to be removed or repositioned, providing stability only when needed.
Solution Approach 2:
The locking mechanism is designed to be self-actuating through the operator's manual manipulation of the handle. The mechanism automatically locks when the handle is rotated or manipulated during insertion, and can be released by reverse manipulation, eliminating the need for separate locking components or complex actuation systems.
3Adaptability or versatility
If the dilator is designed with a removable disposable configuration within the outer sheath, then flexibility and adaptability are improved, but assembly and operation complexity increases
Solution Approach 1:
The device is divided into separable components: the dilator with its handle portion can be removed from the outer sheath after use. This segmentation allows the dilator to be disposed of or sterilized separately from the outer sheath, providing flexibility in disposal and reducing contamination risks while maintaining operational simplicity through straightforward insertion and removal.
Data Source
AI summary
Various methods and devices for inserting a guidewire into the body are provided. In one embodiment, a guidewire insertion device is provided and includes and outer sheath having an outer surface and an inner lumen extending therethrough, and a dilator having an inner lumen extending therethrough and having a length greater than a length of the outer sheath. A guidewire can be configured to extend through the inner lumen of the dilator such that the guidewire is removably and replaceably disposable within the dilator and coupled thereto. A locking mechanism can be effective to selectively configure the guidewire between a locked position in which the guidewire is stationary relative to the dilator and an unlocked position in which the guidewire is movable relative to the dilator.