Deformable Tip Gastrostomy Device for Precise Insertion
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Solution Overview
Problem
Conventional gastrostomy devices face challenges such as accidental removal, internal migration, and difficulty in manipulation during insertion and removal, due to their design which lacks a method to reduce cross-sectional area and aid in precise placement.
Innovation Solution
A non-balloon gastrostomy device with a deformable tip that can be elongated and maintained in a smaller configuration using an insertion/removal tool, allowing for precise insertion and removal through a stoma site, and a method involving a stylus and trigger device to selectively maintain the deformable tip's configuration without external force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the gastrostomy device is inserted in a conventional manner without cross-sectional area reduction, then the insertion process is simple, but the device cannot be precisely placed and may cause accidental removal or internal migration
Solution Approach 1:
The gastrostomy device incorporates a deformable tip that can dynamically change its cross-sectional area between an expanded configuration (for anchoring and preventing migration) and a compressed configuration (for precise insertion through the stoma site). This dynamic shape change allows the device to adapt to different operational phases without requiring multiple devices.
Solution Approach 2:
The device utilizes changes in the physical parameter of cross-sectional area through the deformable tip structure. By mechanically compressing the tip to reduce its cross-sectional area, the device can be precisely inserted through the stoma opening, then expanded to anchor securely, thus resolving the contradiction between insertion precision and device stability.
2Ease of operation
If the device is held elongated manually during insertion, then the device can be inserted, but it is difficult to manipulate and may be simply shoved through the stoma site
Solution Approach 1:
The deformable tip is pre-configured to be compressible along the longitudinal axis, allowing the operator to manually compress it before insertion. This preliminary compression action reduces the cross-sectional area, making the device easier to manipulate and insert precisely through the stoma site without forcing it through.
3Ease of operation
If the device is removed by simple traction without cross-sectional area reduction, then the removal process is simple, but the device cannot be easily removed and may cause discomfort
Solution Approach 1:
The same deformable tip structure that aids insertion also facilitates removal. During removal, the operator can compress the tip to reduce its cross-sectional area, allowing easy withdrawal through the stoma site, then release it to return to the expanded configuration. This dynamic adjustment makes removal as easy as insertion while maintaining device stability during use.
4Adaptability or versatility
If the device maintains a constant cross-sectional area, then the device structure is simple, but it cannot be customized to match different patient needs and stoma sizes
Solution Approach 1:
The deformable tip structure allows the device to change its cross-sectional area parameter in response to different patient needs and stoma sizes. The tip can be compressed to various degrees to achieve different reduced cross-sectional areas, enabling customization for precise insertion across different patient anatomies while maintaining a relatively simple overall device structure.
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
Facilitates easier and more precise insertion and removal of gastrostomy devices, reducing the risk of accidental removal and internal migration, while allowing for customizable cross-sectional areas to match patient needs.
Implementation Method 1
The tip is elongated and compressed along its longitudinal axis to reduce its cross-sectional area
Implementation Method 2
trigger device being adapted to selectively maintain a selected position of the terminal end of the stylus relative to the body without the use of an external force
Data Source
AI summary
A device for inserting a non-balloon gastrostomic device through an opening in the wall of the abdomen and stomach or other viscera of a patient is provided. The insertion device comprises a body, a stylus, and a trigger device being adapted to selectively maintain a selected position of the stylus relative to the body without the use of an external force. A method of inserting the gastrostomic device utilizing the insertion tool is also provided. In addition or alternatively, a gastrostomic device is provided including a hollow tube member and an enlarged resiliently deformable tip at one end of the tube member. The deformable tip is deformable between a first configuration and a second configuration, each configuration having a cross-sectional area. In addition or alternatively, a method is provided for forming the gastrostomic device using a disposable core.