Direction Changing Device for Catheter Insertion
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Solution Overview
Problem
The existing methods for inserting catheters into sheath introducers often require operators to use their non-dominant hand, making it difficult to efficiently insert catheters due to the alignment of the sheath tube and catheter insertion ports, which can be challenging regardless of the sheath tube's insertion direction into the body.
Innovation Solution
A direction changing device with first and second mounting sections that allow the catheter or sheath introducer to be mounted in a curved configuration, enabling the catheter to be inserted in a direction opposite to the sheath tube, facilitating easy manipulation by the operator's dominant hand, regardless of the sheath tube's insertion direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the catheter insertion port is oriented to face in a direction opposite to the direction of insertion of the sheath tube into the blood vessel, then the catheter can be inserted into the sheath introducer, but the operator may be forced to manipulate the catheter by the non-dominant hand, making it difficult to efficiently insert the catheter
Solution Approach 1:
The device allows dynamic adjustment of the catheter insertion port orientation relative to the sheath tube insertion direction. By enabling the insertion port to be positioned at various angles (not fixed opposite to insertion direction), the system adapts to different operational scenarios, allowing operators to use their dominant hand for catheter manipulation while maintaining proper insertion alignment.
Solution Approach 2:
The invention introduces angular orientation as an additional degree of freedom in the catheter insertion port positioning. Instead of a fixed opposite-direction alignment (one-dimensional constraint), the system allows multi-directional positioning in the transverse plane, enabling operators to optimize their hand positioning and manipulation angle based on their dominant hand and operational comfort.
2Device complexity
If the catheter insertion port is fixed to open in a specific direction, then the structure is simple, but the operator cannot easily manipulate the catheter with their dominant hand depending on the sheath tube insertion direction
Solution Approach 1:
The device transitions from a fixed, static catheter insertion port configuration to a dynamic, adjustable configuration. The insertion port can be positioned at different angles relative to the sheath tube, allowing the operator to adapt the port orientation to match their dominant hand's natural manipulation direction, thereby improving ease of operation without significantly increasing structural complexity.
Solution Approach 2:
The invention changes the angular parameter of the catheter insertion port orientation. Instead of a fixed angle (180 degrees opposite to insertion direction), the system allows variation in this angular parameter, enabling optimization for different insertion directions and operator preferences while maintaining structural feasibility.
Data Source
AI summary
In one form, a direction changing device is provided including: a first mounting section; and a second mounting section, wherein an axial direction of the first mounting section and an axial direction of the second mounting section intersect each other or are parallel to each other in plan view, and in a condition where a catheter or a sheath introducer in which the catheter is inserted is mounted to the first mounting section and the second mounting section, the catheter or the sheath introducer adopts a curved shape such that a catheter or sheath introducer portion mounted to the first mounting section extends proximally to distally in one direction and a catheter or sheath introducer portion mounted to the second mounting section extends proximally to distally in another direction with the directions being different from each other.