Catheter Inserting Shell Thread Fastening Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for fastening a catheter device to an insertion guide are tedious and costly, requiring additional threads and multiple assembly steps, which complicates the manufacturing and use of catheter devices for accessing body cavies.
Innovation Solution
The catheter device incorporates an inserting shell with an opening for receiving the thread of the insertion guide, eliminating the need for additional components on the shell, and featuring a channel and notch for secure fastening, allowing for easy and efficient coupling without additional threads on the catheter device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thread is provided on the tip of the insertion guide and on the catheter device for fastening, then the insertion guide and catheter device can be coupled together, but the fastening process becomes tedious and time-consuming
Solution Approach 1:
The patent removes the thread component from the catheter device entirely. Instead of providing threads on both the insertion guide and catheter device, the solution extracts the threading requirement from the catheter device and relies solely on the thread provided on the insertion guide, which is inserted through a channel in the inserting shell to achieve fastening.
Solution Approach 2:
The conventional approach has threads on both components for mutual engagement. This patent inverts the approach by having only one component (insertion guide) carry the thread, while the other component (catheter device) provides a passive receiving structure (channel and opening) that guides and secures the single thread.
2Reliability
If additional threads are provided on the inserting shell of the catheter device, then secure fastening to the insertion guide is achieved, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent extracts the threading requirement entirely from the catheter device's inserting shell. The shell is designed with only a simple channel and opening that receive the thread from the insertion guide, eliminating the need for complex threading operations during manufacturing of the catheter device.
Solution Approach 2:
The fastening function is segmented between two components: the insertion guide carries the thread element, while the catheter device's inserting shell provides the structural framework (channel and opening) to guide and secure that thread. This segmentation allows each component to be manufactured with simpler features.
3Reliability
If multiple components and assembly steps are used for fastening, then reliable connection is achieved, but the number of components and assembly steps increases
Solution Approach 1:
The patent merges the fastening function into a unified structure where the channel and opening in the inserting shell work together as an integrated system to receive and secure the single thread from the insertion guide, eliminating the need for separate threading components on the catheter device.
Solution Approach 2:
The inserting shell's channel and opening structure serves multiple functions: it guides the thread from the insertion guide, provides a pathway for thread insertion, and creates the secure fastening connection. This multi-functionality reduces the need for additional specialized components.
Data Source
AI summary
A catheter device (1) for providing access to a body cavity of a patient comprises a tube (10) and an inserting shell (11) arranged on the tube (10) and constituted to be fastened to an insertion guide (3) for inserting the catheter device (1) into a body opening (C) of a patient (P). Herein, the inserting shell (11) comprises an opening (111) into which a thread (300) of the insertion guide (3) is insertable for fastening the catheter device (1) to the insertion guide (3). In this way, a catheter device is provided which, in an easy and efficient manner, allows for the fastening to an insertion guide.